diff --git a/mobile/lib/features/activity/activity_page.dart b/mobile/lib/features/activity/activity_page.dart
index b4dc54fd1e..8185fd70a9 100644
--- a/mobile/lib/features/activity/activity_page.dart
+++ b/mobile/lib/features/activity/activity_page.dart
@@ -7,6 +7,7 @@ import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:lucide_icons_flutter/lucide_icons.dart';
 
+import '../../shared/identity_names/identity_names_provider.dart';
 import '../../shared/mentions/agent_identity_provider.dart';
 import '../../shared/mentions/mention_tags.dart';
 import '../../shared/relay/relay.dart';
@@ -22,6 +23,7 @@ import '../../shared/widgets/message_author_meta.dart';
 import '../../shared/widgets/modal_presentation.dart';
 import '../channels/channel.dart';
 import '../channels/channel_detail_page.dart';
+import '../channels/channel_identity_names_provider.dart';
 import '../channels/channel_management_provider.dart';
 import '../channels/channels_provider.dart';
 import '../channels/dm_channel_labels.dart';
diff --git a/mobile/lib/features/activity/activity_page/inbox_row.dart b/mobile/lib/features/activity/activity_page/inbox_row.dart
index cb19e65b07..147d143c4c 100644
--- a/mobile/lib/features/activity/activity_page/inbox_row.dart
+++ b/mobile/lib/features/activity/activity_page/inbox_row.dart
@@ -82,7 +82,26 @@ class _InboxRow extends HookConsumerWidget {
     final profile = profiles[senderPubkey];
     // The shared label contract: blank cached names (empty or whitespace-only
     // are relay-valid) fall back to the compact npub, never a blank sender.
-    final senderLabel = profile?.label ?? shortPubkey(item.item.pubkey);
+    // Rows compare names within their own channel, like the channel itself.
+    final channelId = channel?.id ?? item.item.channelId;
+    final Map<String, String> contextualLabels;
+    if (channelId == null) {
+      // No channel: the row's own identities are the comparison context.
+      final names = watchIdentityNames(ref, relevantPubkeys);
+      contextualLabels = {
+        for (final key in names.candidates) key: names.labelFor(key),
+      };
+    } else {
+      contextualLabels = watchChannelIdentityLabels(
+        ref,
+        channelId,
+        relevantPubkeys,
+      );
+    }
+    final senderLabel =
+        contextualLabels[senderPubkey] ??
+        profile?.label ??
+        shortPubkey(item.item.pubkey);
     final profileMentionNames = {
       for (final pubkey in mentionPubkeys)
         if (profiles[pubkey]?.displayName?.trim().isNotEmpty == true)
@@ -325,6 +344,7 @@ class _InboxRow extends HookConsumerWidget {
                                   MessageContent(
                                     content: item.item.displayContent,
                                     mentionNames: mentionNames,
+                                    mentionLabels: contextualLabels,
                                     agentMentionPubkeys: agentMentionPubkeys,
                                     tags: item.item.tags,
                                     maxLines: 2,
diff --git a/mobile/lib/features/activity/activity_page/lists.dart b/mobile/lib/features/activity/activity_page/lists.dart
index ad97049272..f867cc64ab 100644
--- a/mobile/lib/features/activity/activity_page/lists.dart
+++ b/mobile/lib/features/activity/activity_page/lists.dart
@@ -77,7 +77,7 @@ class _RemindersList extends ConsumerWidget {
 
 /// Drafts surface for the Drafts filter — locally saved unsent composer
 /// text that reopens the target composer.
-class _DraftsList extends StatelessWidget {
+class _DraftsList extends ConsumerWidget {
   final List<ComposeDraft> drafts;
   final ScrollController scrollController;
   final Map<String, Channel> channelById;
@@ -95,7 +95,8 @@ class _DraftsList extends StatelessWidget {
   });
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context, WidgetRef ref) {
+    final names = ref.watch(identityNameSourcesProvider);
     if (drafts.isEmpty) {
       return const _EmptySurface(
         icon: LucideIcons.filePen,
@@ -114,7 +115,11 @@ class _DraftsList extends StatelessWidget {
         final destination = channel == null
             ? 'Unavailable channel'
             : channel.isDm
-            ? resolveDmChannelDisplayLabel(channel, currentPubkey: myPubkey)
+            ? resolveDmChannelDisplayLabel(
+                channel,
+                currentPubkey: myPubkey,
+                names: names,
+              )
             : '#${channel.name}';
         return ListTile(
           key: ValueKey('draft-row-${draft.key}'),
diff --git a/mobile/lib/features/channels/add_members_sheet.dart b/mobile/lib/features/channels/add_members_sheet.dart
index 4041f1efbb..996a1a34d7 100644
--- a/mobile/lib/features/channels/add_members_sheet.dart
+++ b/mobile/lib/features/channels/add_members_sheet.dart
@@ -8,6 +8,7 @@ import 'package:lucide_icons_flutter/lucide_icons.dart';
 import '../../shared/theme/theme.dart';
 import '../../shared/widgets/avatar_image.dart';
 import '../../shared/widgets/buzz_loading_indicator.dart';
+import '../../shared/identity_names/identity_names_provider.dart';
 import 'channel_management_provider.dart';
 
 /// Searchable multi-select used to add people or agents to a channel.
@@ -56,6 +57,30 @@ class AddChannelMembersSheet extends HookConsumerWidget {
             )
             .toList() ??
         const <DirectoryUser>[];
+    // Compare every shown choice with the channel's members, so a candidate
+    // who shares a member's name is told apart before being added. Members
+    // are only compared: their names come from the roster the details page
+    // already loaded, so only the shown choices' profiles are fetched.
+    final choices = [...availableUsers, ...selectedUsers.value];
+    final roster =
+        ref.watch(channelMembersProvider(channelId)).asData?.value ??
+        const <ChannelMember>[];
+    final names = watchIdentityNames(
+      ref,
+      [...normalizedExisting, for (final user in choices) user.pubkey],
+      agentPubkeys: {
+        for (final member in roster)
+          if (member.isBot) member.pubkey,
+        for (final user in choices)
+          if (user.isAgent) user.pubkey,
+      },
+      fallbackNames: {
+        for (final member in roster) member.pubkey: ?member.displayName,
+        for (final user in choices) user.pubkey: user.label,
+      },
+      shown: [for (final user in choices) user.pubkey],
+    );
+    String labelFor(DirectoryUser user) => names.labelFor(user.pubkey);
 
     void toggleUser(DirectoryUser user) {
       if (isSubmitting.value) return;
@@ -145,7 +170,7 @@ class AddChannelMembersSheet extends HookConsumerWidget {
                           key: ValueKey(
                             'add-channel-member-selected-${user.pubkey}',
                           ),
-                          label: Text(user.label),
+                          label: Text(labelFor(user)),
                           onDeleted: isSubmitting.value
                               ? null
                               : () => toggleUser(user),
@@ -181,8 +206,8 @@ class AddChannelMembersSheet extends HookConsumerWidget {
                               button: true,
                               selected: selected,
                               label: selected
-                                  ? '${user.label}, selected'
-                                  : user.label,
+                                  ? '${labelFor(user)}, selected'
+                                  : labelFor(user),
                               child: ListTile(
                                 contentPadding: EdgeInsets.zero,
                                 leading: AvatarImage(
@@ -194,7 +219,7 @@ class AddChannelMembersSheet extends HookConsumerWidget {
                                   isAgent: user.isAgent,
                                 ),
                                 title: Text(
-                                  user.label,
+                                  labelFor(user),
                                   maxLines: 1,
                                   overflow: TextOverflow.ellipsis,
                                 ),
diff --git a/mobile/lib/features/channels/channel_actions_sheet.dart b/mobile/lib/features/channels/channel_actions_sheet.dart
index 0df6a03863..1c9a3f0926 100644
--- a/mobile/lib/features/channels/channel_actions_sheet.dart
+++ b/mobile/lib/features/channels/channel_actions_sheet.dart
@@ -22,6 +22,7 @@ import '../../shared/widgets/modal_presentation.dart';
 import '../../shared/widgets/sheet_divider.dart';
 import 'channel.dart';
 import 'add_members_sheet.dart';
+import 'channel_identity_names_provider.dart';
 import 'channel_management_provider.dart';
 import 'channel_mutes/channel_mutes_provider.dart';
 import 'channel_sections/channel_sections_provider.dart';
diff --git a/mobile/lib/features/channels/channel_detail_page.dart b/mobile/lib/features/channels/channel_detail_page.dart
index 92b2ce578b..f535d3ed2b 100644
--- a/mobile/lib/features/channels/channel_detail_page.dart
+++ b/mobile/lib/features/channels/channel_detail_page.dart
@@ -14,6 +14,8 @@ import 'package:scrollable_positioned_list/scrollable_positioned_list.dart';
 import '../../shared/animated_avatar.dart';
 import '../../shared/emoji/emoji_burst.dart';
 import '../../shared/huddle/huddle.dart';
+import '../../shared/identity_names/identity_names.dart';
+import '../../shared/identity_names/identity_names_provider.dart';
 import '../../shared/mentions/agent_identity_provider.dart';
 import '../../shared/relay/relay.dart';
 import '../../shared/theme/theme.dart';
diff --git a/mobile/lib/features/channels/channel_detail_page/app_bar.dart b/mobile/lib/features/channels/channel_detail_page/app_bar.dart
index 2914184729..6168d89c09 100644
--- a/mobile/lib/features/channels/channel_detail_page/app_bar.dart
+++ b/mobile/lib/features/channels/channel_detail_page/app_bar.dart
@@ -306,9 +306,14 @@ class _DmAppBarTitle extends ConsumerWidget {
                 children: [
                   Flexible(
                     child: Text(
-                      resolveDmChannelDisplayLabel(
-                        channel,
-                        currentPubkey: currentPubkey,
+                      ref.watch(
+                        identityNameSourcesProvider.select(
+                          (names) => resolveDmChannelDisplayLabel(
+                            channel,
+                            currentPubkey: currentPubkey,
+                            names: names,
+                          ),
+                        ),
                       ),
                       maxLines: 1,
                       overflow: TextOverflow.ellipsis,
diff --git a/mobile/lib/features/channels/channel_detail_page/huddle_call_avatar.dart b/mobile/lib/features/channels/channel_detail_page/huddle_call_avatar.dart
index 58127f9011..eca5f97865 100644
--- a/mobile/lib/features/channels/channel_detail_page/huddle_call_avatar.dart
+++ b/mobile/lib/features/channels/channel_detail_page/huddle_call_avatar.dart
@@ -11,6 +11,7 @@ class _HuddleCallAvatar extends HookConsumerWidget {
     required this.speakerLevel,
     required this.preparingResponse,
     required this.onTap,
+    this.contextualLabel,
     this.isSelf = false,
     this.frameSize = _huddleAvatarFrameSize,
   });
@@ -18,6 +19,9 @@ class _HuddleCallAvatar extends HookConsumerWidget {
   final String pubkey;
   final UserProfile? profile;
   final String? fallbackLabel;
+
+  /// The huddle-scoped identity label, when resolved.
+  final String? contextualLabel;
   final bool active;
   final double speakerLevel;
   final bool preparingResponse;
@@ -122,6 +126,7 @@ class _HuddleCallAvatar extends HookConsumerWidget {
       pubkey: pubkey,
       profile: profile,
       fallbackLabel: fallbackLabel,
+      contextualLabel: contextualLabel,
       isSelf: isSelf,
     );
     final isAgent = profile?.isAgent == true || fallbackLabel != null;
@@ -265,8 +270,10 @@ String _huddleParticipantLabel({
   required UserProfile? profile,
   required String? fallbackLabel,
   required bool isSelf,
+  String? contextualLabel,
 }) {
   if (isSelf) return 'You';
+  if (contextualLabel != null) return contextualLabel;
   final profileName = profile?.displayName?.trim();
   final directoryName = fallbackLabel?.trim();
   return (profileName?.isNotEmpty == true ? profileName : null) ??
diff --git a/mobile/lib/features/channels/channel_detail_page/huddle_call_participants.dart b/mobile/lib/features/channels/channel_detail_page/huddle_call_participants.dart
index 5e0d7922d0..a4d2ac02f4 100644
--- a/mobile/lib/features/channels/channel_detail_page/huddle_call_participants.dart
+++ b/mobile/lib/features/channels/channel_detail_page/huddle_call_participants.dart
@@ -6,6 +6,7 @@ class _HuddleCallParticipants extends StatelessWidget {
     required this.error,
     required this.profiles,
     required this.fallbackLabels,
+    required this.contextualLabels,
     required this.remotePubkeys,
     required this.localPubkey,
     required this.activeSpeakerPubkeys,
@@ -22,6 +23,9 @@ class _HuddleCallParticipants extends StatelessWidget {
   final String? error;
   final Map<String, UserProfile> profiles;
   final Map<String, String> fallbackLabels;
+
+  /// Huddle-scoped identity labels, keyed by lowercase pubkey.
+  final Map<String, String> contextualLabels;
   final List<String> remotePubkeys;
   final String? localPubkey;
   final Set<String> activeSpeakerPubkeys;
@@ -146,6 +150,7 @@ class _HuddleCallParticipants extends StatelessWidget {
                 pubkeys: remotePubkeys,
                 profiles: profiles,
                 fallbackLabels: fallbackLabels,
+                contextualLabels: contextualLabels,
                 activeSpeakerPubkeys: activeSpeakerPubkeys,
                 speakerLevels: speakerLevels,
                 workingAgentPubkeys: workingAgentPubkeys,
diff --git a/mobile/lib/features/channels/channel_detail_page/huddle_participant_cluster.dart b/mobile/lib/features/channels/channel_detail_page/huddle_participant_cluster.dart
index d966d26058..fbbe42cb38 100644
--- a/mobile/lib/features/channels/channel_detail_page/huddle_participant_cluster.dart
+++ b/mobile/lib/features/channels/channel_detail_page/huddle_participant_cluster.dart
@@ -38,6 +38,7 @@ class _HuddleParticipantCluster extends HookWidget {
     required this.pubkeys,
     required this.profiles,
     required this.fallbackLabels,
+    required this.contextualLabels,
     required this.activeSpeakerPubkeys,
     required this.speakerLevels,
     required this.workingAgentPubkeys,
@@ -51,6 +52,9 @@ class _HuddleParticipantCluster extends HookWidget {
   final List<String> pubkeys;
   final Map<String, UserProfile> profiles;
   final Map<String, String> fallbackLabels;
+
+  /// Huddle-scoped identity labels, keyed by lowercase pubkey.
+  final Map<String, String> contextualLabels;
   final Set<String> activeSpeakerPubkeys;
   final Map<String, double> speakerLevels;
   final Set<String> workingAgentPubkeys;
@@ -139,6 +143,7 @@ class _HuddleParticipantCluster extends HookWidget {
                 pubkey: pubkey,
                 profile: profiles[pubkey],
                 fallbackLabel: fallbackLabels[pubkey],
+                contextualLabel: contextualLabels[pubkey],
                 active: activeSpeakerPubkeys.contains(pubkey),
                 speakerLevel: speakerLevels[pubkey] ?? 0,
                 preparingResponse: workingAgentPubkeys.contains(pubkey),
@@ -174,6 +179,7 @@ class _HuddleAnimatedParticipant extends StatelessWidget {
     required this.pubkey,
     required this.profile,
     required this.fallbackLabel,
+    required this.contextualLabel,
     required this.active,
     required this.speakerLevel,
     required this.preparingResponse,
@@ -188,6 +194,7 @@ class _HuddleAnimatedParticipant extends StatelessWidget {
   final String pubkey;
   final UserProfile? profile;
   final String? fallbackLabel;
+  final String? contextualLabel;
   final bool active;
   final double speakerLevel;
   final bool preparingResponse;
@@ -240,6 +247,7 @@ class _HuddleAnimatedParticipant extends StatelessWidget {
             pubkey: pubkey,
             profile: profile,
             fallbackLabel: fallbackLabel,
+            contextualLabel: contextualLabel,
             active: active,
             speakerLevel: speakerLevel,
             preparingResponse: preparingResponse,
diff --git a/mobile/lib/features/channels/channel_detail_page/huddle_participant_overlay.dart b/mobile/lib/features/channels/channel_detail_page/huddle_participant_overlay.dart
index 48f55bfd87..c9f13b158e 100644
--- a/mobile/lib/features/channels/channel_detail_page/huddle_participant_overlay.dart
+++ b/mobile/lib/features/channels/channel_detail_page/huddle_participant_overlay.dart
@@ -168,6 +168,11 @@ class _HuddleParticipantSpotlight extends ConsumerWidget {
       pubkey: pubkey,
       profile: profile,
       fallbackLabel: fallbackLabel,
+      contextualLabel: ref.watch(
+        _huddleIdentityNamesProvider(
+          ephemeralChannelId,
+        ).select((names) => names.labelFor(pubkey)),
+      ),
       isSelf: isSelf,
     );
     final isAgent = profile?.isAgent == true || fallbackLabel != null;
@@ -269,6 +274,7 @@ class _HuddleParticipantRoster extends ConsumerWidget {
     }
     final profiles = ref.watch(userCacheProvider);
     final fallbackLabels = ref.watch(agentDirectoryDisplayNamesProvider);
+    final names = ref.watch(_huddleIdentityNamesProvider(ephemeralChannelId));
     final activeSpeakerPubkeys = ref.watch(
       huddleSessionProvider.select((session) => session.activeSpeakerPubkeys),
     );
@@ -333,6 +339,7 @@ class _HuddleParticipantRoster extends ConsumerWidget {
                             pubkey: pubkey,
                             profile: profile,
                             fallbackLabel: fallbackLabels[pubkey],
+                            contextualLabel: names.labelFor(pubkey),
                             isSelf: false,
                           );
                           return Semantics(
diff --git a/mobile/lib/features/channels/channel_detail_page/huddle_sheet.dart b/mobile/lib/features/channels/channel_detail_page/huddle_sheet.dart
index 5b0abb5766..06312929d2 100644
--- a/mobile/lib/features/channels/channel_detail_page/huddle_sheet.dart
+++ b/mobile/lib/features/channels/channel_detail_page/huddle_sheet.dart
@@ -41,6 +41,28 @@ final _huddleLogicalParticipantPubkeysProvider = Provider.autoDispose
       );
     });
 
+/// Contextual identity labels for one Huddle: its logical participants are
+/// the comparison context, and its bot members are agents.
+final _huddleIdentityNamesProvider = Provider.autoDispose
+    .family<IdentityNames, String>((ref, channelId) {
+      final sources = ref.watch(identityNameSourcesProvider);
+      final members =
+          ref.watch(channelMembersProvider(channelId)).value ??
+          const <ChannelMember>[];
+      final names = sources.scope(
+        ref.watch(_huddleLogicalParticipantPubkeysProvider(channelId)),
+        agentPubkeys: {
+          for (final member in members)
+            if (member.isBot) member.pubkey,
+        },
+        fallbackNames: {
+          for (final member in members) member.pubkey: ?member.displayName,
+        },
+      );
+      loadIdentityNameOwners(ref, names);
+      return names;
+    });
+
 class _HuddleParticipantProfileUpdates extends Notifier<int> {
   _HuddleParticipantProfileUpdates(this.channelId);
 
@@ -573,6 +595,12 @@ class _MobileHuddleCallPage extends ConsumerWidget {
     );
     final profiles = ref.watch(userCacheProvider);
     final directoryDisplayNames = ref.watch(agentDirectoryDisplayNamesProvider);
+    final huddleNames = ref.watch(
+      _huddleIdentityNamesProvider(invite.ephemeralChannelId),
+    );
+    final huddleLabels = {
+      for (final pubkey in remotePubkeys) pubkey: huddleNames.labelFor(pubkey),
+    };
     final huddleTypingEntries = ref.watch(
       channelTypingProvider(invite.ephemeralChannelId),
     );
@@ -679,6 +707,7 @@ class _MobileHuddleCallPage extends ConsumerWidget {
                         : null,
                     profiles: profiles,
                     fallbackLabels: directoryDisplayNames,
+                    contextualLabels: huddleLabels,
                     remotePubkeys: remotePubkeys,
                     localPubkey: localPubkey,
                     activeSpeakerPubkeys: session.activeSpeakerPubkeys,
diff --git a/mobile/lib/features/channels/channel_details_page.dart b/mobile/lib/features/channels/channel_details_page.dart
index a626f0dc4f..bd84d2d8d6 100644
--- a/mobile/lib/features/channels/channel_details_page.dart
+++ b/mobile/lib/features/channels/channel_details_page.dart
@@ -110,6 +110,11 @@ class ChannelDetailsPage extends HookConsumerWidget {
         '$memberCount ${memberCount == 1 ? 'member' : 'members'}';
     final previewMembers = members.take(_channelMemberPreviewLimit).toList();
     final userCache = ref.watch(userCacheProvider);
+    final memberLabels = watchChannelIdentityLabels(
+      ref,
+      resolvedChannel.id,
+      previewMembers.map((member) => member.pubkey),
+    );
     final currentSectionId = sectionState.isReady
         ? sectionState.store.assignments[resolvedChannel.id]
         : sectionId;
@@ -410,6 +415,7 @@ class ChannelDetailsPage extends HookConsumerWidget {
                     onMemberTap: onMemberTap,
                     displayName:
                         userCache[member.pubkey.toLowerCase()]?.displayName,
+                    contextualLabel: memberLabels[member.pubkey.toLowerCase()],
                     avatarUrl:
                         userCache[member.pubkey.toLowerCase()]?.avatarUrl,
                   ),
@@ -643,6 +649,7 @@ class _ChannelMemberPreviewRow extends StatelessWidget {
     required this.currentPubkey,
     required this.onMemberTap,
     required this.displayName,
+    required this.contextualLabel,
     required this.avatarUrl,
   });
 
@@ -650,22 +657,26 @@ class _ChannelMemberPreviewRow extends StatelessWidget {
   final String? currentPubkey;
   final void Function(BuildContext context, String pubkey) onMemberTap;
   final String? displayName;
+
+  /// The channel's contextual label for this member, when resolved.
+  final String? contextualLabel;
   final String? avatarUrl;
 
   @override
   Widget build(BuildContext context) {
     final isSelf = member.pubkey.toLowerCase() == currentPubkey?.toLowerCase();
     final hasName = displayName?.trim().isNotEmpty == true;
-    final label = isSelf
+    final name = isSelf
         ? 'You'
         : hasName
         ? displayName!.trim()
         : member.labelFor(currentPubkey);
+    final label = isSelf ? name : contextualLabel ?? name;
     // Self/named initials come from the visible label; unnamed members stay
     // keyed to the hex public key so the compact-npub label doesn't render
     // `N` for everyone.
     final initial = isSelf || hasName
-        ? label[0].toUpperCase()
+        ? name[0].toUpperCase()
         : (member.pubkey.isNotEmpty ? member.pubkey[0].toUpperCase() : '?');
     final roleLabel = _channelMemberRoleLabel(member.role);
     final titleStyle = context.textTheme.bodyLarge;
diff --git a/mobile/lib/features/channels/channels_page.dart b/mobile/lib/features/channels/channels_page.dart
index 55fec3f08e..5bee5e5bdc 100644
--- a/mobile/lib/features/channels/channels_page.dart
+++ b/mobile/lib/features/channels/channels_page.dart
@@ -30,6 +30,7 @@ import '../../shared/custom_emoji/custom_emoji_render.dart';
 import '../profile/profile_avatar.dart';
 import '../profile/profile_provider.dart';
 import '../profile/presence_cache_provider.dart';
+import '../../shared/identity_names/identity_names_provider.dart';
 import '../../shared/profile/user_cache_provider.dart';
 import '../pairing/pairing_page.dart';
 import '../pairing/pairing_provider.dart';
diff --git a/mobile/lib/features/channels/channels_page/body.dart b/mobile/lib/features/channels/channels_page/body.dart
index 34faa068eb..33364e2b21 100644
--- a/mobile/lib/features/channels/channels_page/body.dart
+++ b/mobile/lib/features/channels/channels_page/body.dart
@@ -119,10 +119,25 @@ class _SliverChannelsList extends HookConsumerWidget {
     final streamChannels = visibleChannels
         .where((channel) => channel.isStream)
         .toList();
-    final dmChannels = sortDmChannelsByDisplayLabel(
-      visibleChannels.where((channel) => channel.isDm),
-      currentPubkey: currentPubkey,
+    final unsortedDms = visibleChannels.where((channel) => channel.isDm);
+    // Rebuild only when the DM order changes, not for every profile fetch.
+    final dmOrder = ref.watch(
+      identityNameSourcesProvider.select(
+        (names) => [
+          for (final channel in sortDmChannelsByDisplayLabel(
+            unsortedDms,
+            currentPubkey: currentPubkey,
+            names: names,
+          ))
+            channel.id,
+        ].join('\u0000'),
+      ),
     );
+    final dmRank = {
+      for (final (index, id) in dmOrder.split('\u0000').indexed) id: index,
+    };
+    final dmChannels = unsortedDms.toList()
+      ..sort((a, b) => dmRank[a.id]!.compareTo(dmRank[b.id]!));
 
     final starredExpanded = useState(true);
     final channelsExpanded = useState(true);
diff --git a/mobile/lib/features/channels/channels_page/channel_tile.dart b/mobile/lib/features/channels/channels_page/channel_tile.dart
index e060e9e9ac..cbafb0db0e 100644
--- a/mobile/lib/features/channels/channels_page/channel_tile.dart
+++ b/mobile/lib/features/channels/channels_page/channel_tile.dart
@@ -65,9 +65,14 @@ class _ChannelTile extends ConsumerWidget {
                 crossAxisAlignment: CrossAxisAlignment.start,
                 children: [
                   Text(
-                    resolveDmChannelDisplayLabel(
-                      channel,
-                      currentPubkey: currentPubkey,
+                    ref.watch(
+                      identityNameSourcesProvider.select(
+                        (names) => resolveDmChannelDisplayLabel(
+                          channel,
+                          currentPubkey: currentPubkey,
+                          names: names,
+                        ),
+                      ),
                     ),
                     maxLines: 1,
                     overflow: TextOverflow.ellipsis,
diff --git a/mobile/lib/features/channels/channels_page/sheets.dart b/mobile/lib/features/channels/channels_page/sheets.dart
index 14dab6497f..e15805d171 100644
--- a/mobile/lib/features/channels/channels_page/sheets.dart
+++ b/mobile/lib/features/channels/channels_page/sheets.dart
@@ -486,6 +486,17 @@ class _NewDirectMessageSheet extends HookConsumerWidget {
               normalizedPubkey.contains(normalizedQuery);
         }).toList() ??
         const <DirectoryUser>[];
+    // Eligible recipients shown or chosen here are the comparison context.
+    final recipients = [...availableResults, ...selectedUsers.value];
+    final names = watchIdentityNames(
+      ref,
+      [for (final user in recipients) user.pubkey],
+      agentPubkeys: {
+        for (final user in recipients)
+          if (user.isAgent) user.pubkey,
+      },
+      fallbackNames: {for (final user in recipients) user.pubkey: user.label},
+    );
     final canSubmit = !isSubmitting.value && selectedUsers.value.isNotEmpty;
 
     Future<void> submit() async {
@@ -580,6 +591,7 @@ class _NewDirectMessageSheet extends HookConsumerWidget {
                                 for (final user in selectedUsers.value)
                                   _SelectedDmRecipientChip(
                                     user: user,
+                                    label: names.labelFor(user.pubkey),
                                     enabled: !isSubmitting.value,
                                     onDeleted: () {
                                       selectedUsers.value = [
@@ -748,7 +760,7 @@ class _NewDirectMessageSheet extends HookConsumerWidget {
                           isAgent: user.isAgent,
                         ),
                         title: Text(
-                          user.label,
+                          names.labelFor(user.pubkey),
                           maxLines: 1,
                           overflow: TextOverflow.ellipsis,
                         ),
@@ -799,11 +811,13 @@ class _NewDirectMessageSheet extends HookConsumerWidget {
 
 class _SelectedDmRecipientChip extends StatelessWidget {
   final DirectoryUser user;
+  final String label;
   final bool enabled;
   final VoidCallback onDeleted;
 
   const _SelectedDmRecipientChip({
     required this.user,
+    required this.label,
     required this.enabled,
     required this.onDeleted,
   });
@@ -825,7 +839,7 @@ class _SelectedDmRecipientChip extends StatelessWidget {
             button: true,
             enabled: enabled,
             excludeSemantics: true,
-            label: 'Remove ${user.label}',
+            label: 'Remove $label',
             child: InkWell(
               customBorder: const StadiumBorder(),
               onTap: enabled ? onDeleted : null,
@@ -853,7 +867,7 @@ class _SelectedDmRecipientChip extends StatelessWidget {
                     const SizedBox(width: Grid.xxs),
                     Flexible(
                       child: Text(
-                        user.label,
+                        label,
                         maxLines: 1,
                         overflow: TextOverflow.ellipsis,
                         style: context.textTheme.bodyLarge?.copyWith(
diff --git a/mobile/lib/features/channels/dm_channel_labels.dart b/mobile/lib/features/channels/dm_channel_labels.dart
index 51e7573058..5e1a35e8ed 100644
--- a/mobile/lib/features/channels/dm_channel_labels.dart
+++ b/mobile/lib/features/channels/dm_channel_labels.dart
@@ -1,3 +1,4 @@
+import '../../shared/identity_names/identity_names.dart';
 import '../../shared/utils/string_utils.dart';
 import 'channel.dart';
 
@@ -22,18 +23,41 @@ String formatDmParticipantDisplayName(List<String> displayNames) {
       : visible.join(', ');
 }
 
-String resolveDmChannelDisplayLabel(Channel channel, {String? currentPubkey}) {
+/// Contextual participant labels for a DM: its participants are the whole
+/// comparison context, and relay participant names are fallbacks.
+IdentityNames dmParticipantNames(Channel channel, IdentityNameSources names) =>
+    names.scope(
+      channel.participantPubkeys,
+      fallbackNames: {
+        for (var index = 0; index < channel.participantPubkeys.length; index++)
+          if (index < channel.participants.length)
+            channel.participantPubkeys[index]: channel.participants[index],
+      },
+    );
+
+/// The DM's display label. With [names], participant labels follow the
+/// contextual identity-name policy, so namesakes stay distinguishable.
+String resolveDmChannelDisplayLabel(
+  Channel channel, {
+  String? currentPubkey,
+  IdentityNameSources? names,
+}) {
   if (!channel.isDm || !isGenericDmChannelName(channel.name)) {
     return channel.name;
   }
 
   final normalizedCurrent = currentPubkey?.toLowerCase();
+  final participantNames = names == null
+      ? null
+      : dmParticipantNames(channel, names);
   final participants = <({String label, String? pubkey})>[
     for (var index = 0; index < channel.participantPubkeys.length; index++)
       (
-        label: index < channel.participants.length
-            ? channel.participants[index]
-            : shortPubkey(channel.participantPubkeys[index]),
+        label:
+            participantNames?.labelFor(channel.participantPubkeys[index]) ??
+            (index < channel.participants.length
+                ? channel.participants[index]
+                : shortPubkey(channel.participantPubkeys[index])),
         pubkey: channel.participantPubkeys[index].toLowerCase(),
       ),
   ];
@@ -107,16 +131,19 @@ String dmAvatarInitial(Channel channel, {String? currentPubkey}) {
 List<Channel> sortDmChannelsByDisplayLabel(
   Iterable<Channel> channels, {
   String? currentPubkey,
+  IdentityNameSources? names,
 }) {
   final sorted = channels.toList();
   sorted.sort((left, right) {
     final leftLabel = resolveDmChannelDisplayLabel(
       left,
       currentPubkey: currentPubkey,
+      names: names,
     );
     final rightLabel = resolveDmChannelDisplayLabel(
       right,
       currentPubkey: currentPubkey,
+      names: names,
     );
     final labelCompare = leftLabel.toLowerCase().compareTo(
       rightLabel.toLowerCase(),
diff --git a/mobile/lib/features/channels/members_sheet.dart b/mobile/lib/features/channels/members_sheet.dart
index ba720a408e..8b14f411b4 100644
--- a/mobile/lib/features/channels/members_sheet.dart
+++ b/mobile/lib/features/channels/members_sheet.dart
@@ -14,6 +14,7 @@ import '../profile/user_status_cache_provider.dart';
 import 'agent_activity/agent_activity_sheet.dart';
 import 'agent_activity/working_bots_provider.dart';
 import 'channel.dart';
+import 'channel_identity_names_provider.dart';
 import 'channel_management_provider.dart';
 
 class MembersSheet extends HookConsumerWidget {
@@ -216,16 +217,17 @@ class _MemberTile extends ConsumerWidget {
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
-    final label = isSelf
+    final name = isSelf
         ? 'You'
         : (profile?.displayName?.trim().isNotEmpty == true
               ? profile!.displayName!.trim()
               : member.labelFor(currentPubkey));
+    final label = _watchContextualLabel(ref);
     // Named members initial from their name; unnamed ones stay keyed to the
     // hex public key so the compact-npub label doesn't render `N` for all.
     final hasName = profile?.displayName?.trim().isNotEmpty == true;
     final initial = isSelf || hasName
-        ? label[0].toUpperCase()
+        ? name[0].toUpperCase()
         : (member.pubkey.isNotEmpty ? member.pubkey[0].toUpperCase() : '?');
     final showManagementActions = canManage && !isSelf && !member.isOwner;
     final showMenu = showManagementActions || onViewActivity != null;
@@ -287,6 +289,10 @@ class _MemberTile extends ConsumerWidget {
     );
   }
 
+  /// 'You' for the viewer; otherwise the channel's contextual label.
+  String _watchContextualLabel(WidgetRef ref) =>
+      isSelf ? 'You' : watchChannelIdentityLabel(ref, channelId, member.pubkey);
+
   void _showMemberActions(
     BuildContext context,
     WidgetRef ref, {
@@ -294,9 +300,9 @@ class _MemberTile extends ConsumerWidget {
   }) {
     final label = isSelf
         ? 'You'
-        : (profile?.displayName?.trim().isNotEmpty == true
-              ? profile!.displayName!.trim()
-              : member.labelFor(currentPubkey));
+        : ref
+              .read(channelIdentityNamesProvider(channelId))
+              .labelFor(member.pubkey);
     final canChangeRole = showManagementActions && !member.isBot;
     showBuzzModalBottomSheet<void>(
       context: context,
diff --git a/mobile/lib/features/pulse/agent_activity_card.dart b/mobile/lib/features/pulse/agent_activity_card.dart
index d5af2b3046..6c8c4c5f30 100644
--- a/mobile/lib/features/pulse/agent_activity_card.dart
+++ b/mobile/lib/features/pulse/agent_activity_card.dart
@@ -3,10 +3,10 @@ import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:lucide_icons_flutter/lucide_icons.dart';
 
+import '../../shared/identity_names/identity_names.dart';
 import '../../shared/theme/theme.dart';
 import '../../shared/widgets/avatar_image.dart';
 import '../../shared/profile/user_cache_provider.dart';
-import '../../shared/utils/string_utils.dart';
 import 'note_card.dart';
 import 'pulse_models.dart';
 
@@ -19,16 +19,20 @@ class AgentActivityCard extends HookConsumerWidget {
     super.key,
     required this.group,
     required this.reactions,
+    required this.names,
     this.onReactionChanged,
   });
 
+  /// The Pulse timeline's identity labels.
+  final IdentityNames names;
+
   @override
   Widget build(BuildContext context, WidgetRef ref) {
     final expanded = useState(group.notes.length == 1);
     final profile =
         ref.watch(userCacheProvider.select((cache) => cache[group.pubkey])) ??
         ref.read(userCacheProvider.notifier).get(group.pubkey);
-    final name = profile?.label ?? shortPubkey(group.pubkey);
+    final name = names.labelFor(group.pubkey);
 
     return Column(
       children: [
@@ -143,6 +147,7 @@ class AgentActivityCard extends HookConsumerWidget {
                           reactedByCurrentUser: false,
                         ),
                     isAgent: true,
+                    names: names,
                     onReactionChanged: onReactionChanged,
                   ),
                   if (note != group.notes.last)
diff --git a/mobile/lib/features/pulse/compose_note_page.dart b/mobile/lib/features/pulse/compose_note_page.dart
index 9564b10cfa..e456a5de3a 100644
--- a/mobile/lib/features/pulse/compose_note_page.dart
+++ b/mobile/lib/features/pulse/compose_note_page.dart
@@ -2,6 +2,9 @@ import 'package:flutter/material.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 
+import '../../shared/identity_names/identity_names.dart';
+import '../../shared/identity_names/identity_names_provider.dart';
+import '../../shared/mentions/mention_tags.dart';
 import '../../shared/theme/theme.dart';
 import '../../shared/widgets/avatar_image.dart';
 import '../../shared/widgets/buzz_loading_indicator.dart';
@@ -10,7 +13,6 @@ import '../../shared/widgets/frosted_scaffold.dart';
 import '../channels/message_content.dart';
 import '../profile/profile_provider.dart';
 import '../../shared/profile/user_cache_provider.dart';
-import '../../shared/utils/string_utils.dart';
 import 'note_card.dart';
 import 'pulse_actions.dart';
 import 'pulse_models.dart';
@@ -24,7 +26,12 @@ import 'pulse_models.dart';
 class ComposeNotePage extends HookConsumerWidget {
   final UserNote? replyTo;
 
-  const ComposeNotePage({super.key, this.replyTo});
+  /// The comparison context of the surface that opened the reply, so the
+  /// reply context names people as they were shown there. Its labels are
+  /// resolved against live naming facts while this page is open.
+  final IdentityNames? names;
+
+  const ComposeNotePage({super.key, this.replyTo, this.names});
 
   bool get _isReply => replyTo != null;
 
@@ -99,7 +106,7 @@ class ComposeNotePage extends HookConsumerWidget {
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
             SizedBox(height: frostedAppBarHeight(context)),
-            if (_isReply) _ReplyContext(note: replyTo!),
+            if (_isReply) _ReplyContext(note: replyTo!, names: names),
             Expanded(
               child: SingleChildScrollView(
                 padding: const EdgeInsets.all(Grid.xs),
@@ -158,8 +165,9 @@ class ComposeNotePage extends HookConsumerWidget {
 /// height so a long note doesn't push the editor off-screen.
 class _ReplyContext extends ConsumerWidget {
   final UserNote note;
+  final IdentityNames? names;
 
-  const _ReplyContext({required this.note});
+  const _ReplyContext({required this.note, this.names});
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
@@ -167,7 +175,11 @@ class _ReplyContext extends ConsumerWidget {
     final profile =
         ref.watch(userCacheProvider.select((cache) => cache[pubkey])) ??
         ref.read(userCacheProvider.notifier).get(pubkey);
-    final displayName = profile?.label ?? shortPubkey(pubkey);
+    final mentionPubkeys = mentionedPubkeysFromTags(note.tags);
+    final labels =
+        names?.withSources(ref.watch(identityNameSourcesProvider)) ??
+        watchIdentityNames(ref, {pubkey, ...mentionPubkeys});
+    final displayName = labels.labelFor(pubkey);
 
     return Padding(
       padding: const EdgeInsets.fromLTRB(Grid.gutter, Grid.xs, Grid.gutter, 0),
@@ -244,6 +256,10 @@ class _ReplyContext extends ConsumerWidget {
                           heightFactor: 1,
                           child: MessageContent(
                             content: note.content,
+                            mentionLabels: {
+                              for (final key in mentionPubkeys)
+                                key: labels.labelFor(key),
+                            },
                             tags: note.tags,
                             baseStyle: messageBodyTextStyle.copyWith(
                               color: context.colors.onSurface,
diff --git a/mobile/lib/features/pulse/note_card.dart b/mobile/lib/features/pulse/note_card.dart
index 769240d3da..90d2b35fdd 100644
--- a/mobile/lib/features/pulse/note_card.dart
+++ b/mobile/lib/features/pulse/note_card.dart
@@ -5,13 +5,15 @@ import 'package:lucide_icons_flutter/lucide_icons.dart';
 import 'package:nostr/nostr.dart' as nostr;
 
 import '../../shared/clipboard_utils.dart';
+import '../../shared/identity_names/identity_names.dart';
+import '../../shared/identity_names/identity_names_provider.dart';
+import '../../shared/mentions/mention_tags.dart';
 import '../../shared/theme/theme.dart';
 import '../../shared/widgets/avatar_image.dart';
 import '../channels/channel_detail_page.dart';
 import '../channels/channel_management_provider.dart';
 import '../channels/message_content.dart';
 import '../../shared/profile/user_cache_provider.dart';
-import '../../shared/utils/string_utils.dart';
 import '../profile/user_profile_sheet.dart';
 import 'compose_note_page.dart';
 import 'pulse_actions.dart';
@@ -26,6 +28,10 @@ class NoteCard extends HookConsumerWidget {
   final VoidCallback? onReactionChanged;
   final ValueChanged<String>? onFollowChanged;
 
+  /// The surrounding collection's identity labels (for example the Pulse
+  /// timeline's authors). When absent, the note alone is the context.
+  final IdentityNames? names;
+
   const NoteCard({
     super.key,
     required this.note,
@@ -35,6 +41,7 @@ class NoteCard extends HookConsumerWidget {
     this.canFollow = false,
     this.onReactionChanged,
     this.onFollowChanged,
+    this.names,
   });
 
   @override
@@ -44,7 +51,13 @@ class NoteCard extends HookConsumerWidget {
     final profile =
         ref.watch(userCacheProvider.select((cache) => cache[pubkey])) ??
         ref.read(userCacheProvider.notifier).get(pubkey);
-    final displayName = profile?.label ?? shortPubkey(pubkey);
+    final mentionPubkeys = mentionedPubkeysFromTags(note.tags);
+    final labels =
+        names ?? watchIdentityNames(ref, pulseNamedIdentities([note]));
+    final displayName = labels.labelFor(pubkey);
+    final mentionLabels = {
+      for (final key in mentionPubkeys) key: labels.labelFor(key),
+    };
     final effectiveUpvoted =
         pendingUpvote.value ?? reaction.reactedByCurrentUser;
     final effectiveCount = _effectiveCount(reaction, pendingUpvote.value);
@@ -65,7 +78,11 @@ class NoteCard extends HookConsumerWidget {
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           GestureDetector(
-            onTap: () => showUserProfileSheet(context, note.pubkey),
+            onTap: () => showUserProfileSheet(
+              context,
+              note.pubkey,
+              names: liveIdentityNamesProvider(labels),
+            ),
             child: AvatarImage(
               imageUrl: profile?.avatarUrl,
               radius: 18,
@@ -92,7 +109,11 @@ class NoteCard extends HookConsumerWidget {
                   children: [
                     Expanded(
                       child: GestureDetector(
-                        onTap: () => showUserProfileSheet(context, note.pubkey),
+                        onTap: () => showUserProfileSheet(
+                          context,
+                          note.pubkey,
+                          names: liveIdentityNamesProvider(labels),
+                        ),
                         child: Row(
                           children: [
                             Expanded(
@@ -155,7 +176,7 @@ class NoteCard extends HookConsumerWidget {
                 if (note.replyParentId != null) ...[
                   const SizedBox(height: 2),
                   Text(
-                    'Replying to ${_replyTargetLabel(note)}',
+                    'Replying to ${_replyTargetLabel(note, labels)}',
                     style: context.textTheme.labelSmall?.copyWith(
                       color: context.colors.onSurfaceVariant,
                     ),
@@ -164,6 +185,7 @@ class NoteCard extends HookConsumerWidget {
                 const SizedBox(height: Grid.half),
                 MessageContent(
                   content: note.content,
+                  mentionLabels: mentionLabels,
                   tags: note.tags,
                   baseStyle: messageBodyTextStyle.copyWith(
                     color: context.colors.onSurface,
@@ -199,7 +221,8 @@ class NoteCard extends HookConsumerWidget {
                       icon: LucideIcons.messageCircle,
                       onTap: () => Navigator.of(context).push(
                         MaterialPageRoute<void>(
-                          builder: (_) => ComposeNotePage(replyTo: note),
+                          builder: (_) =>
+                              ComposeNotePage(replyTo: note, names: labels),
                         ),
                       ),
                     ),
@@ -315,15 +338,25 @@ class _ActionButton extends StatelessWidget {
   }
 }
 
+/// Every identity [notes] name on screen: authors, reply-parent authors and
+/// mentions. A Pulse collection compares all of them together.
+Set<String> pulseNamedIdentities(Iterable<UserNote> notes) => {
+  for (final note in notes) ...{
+    note.pubkey.toLowerCase(),
+    ?note.replyParentAuthor?.toLowerCase(),
+    ...mentionedPubkeysFromTags(note.tags),
+  },
+};
+
 String _shareUri(UserNote note) =>
     'nostr:${nostr.Nip19.encodeShareableIdentifiers(prefix: nostr.Nip19Prefix.nevent, data: note.id, author: note.pubkey, kind: 1)}';
 
-/// Compact label for a note's reply target: the parent author's public key
-/// (npub form) when known, otherwise the parent event id. Event ids are not
-/// public keys — they stay hex-truncated and out of the npub contract.
-String _replyTargetLabel(UserNote note) {
+/// Compact label for a note's reply target: the parent author's contextual
+/// label when known, otherwise the parent event id. Event ids are not public
+/// keys — they stay hex-truncated and out of the npub contract.
+String _replyTargetLabel(UserNote note, IdentityNames names) {
   final author = note.replyParentAuthor;
-  if (author != null) return shortPubkey(author);
+  if (author != null) return names.labelFor(author);
   final eventId = note.replyParentId!;
   return eventId.length <= 8 ? eventId : '${eventId.substring(0, 8)}…';
 }
diff --git a/mobile/lib/features/pulse/pulse_page.dart b/mobile/lib/features/pulse/pulse_page.dart
index 08568fc8dc..522212aedd 100644
--- a/mobile/lib/features/pulse/pulse_page.dart
+++ b/mobile/lib/features/pulse/pulse_page.dart
@@ -3,6 +3,7 @@ import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:lucide_icons_flutter/lucide_icons.dart';
 
+import '../../shared/identity_names/identity_names_provider.dart';
 import '../../shared/relay/relay.dart';
 import '../../shared/theme/theme.dart';
 import '../../shared/widgets/filter_chip_bar.dart';
@@ -169,6 +170,16 @@ class _PulseBody extends ConsumerWidget {
             child: _EmptyState(message: _emptyMessage(tab)),
           );
         }
+        // Everyone the timeline names — authors, reply targets and mentions
+        // — is one comparison context, so two same-name targets on
+        // different notes are still told apart.
+        final names = watchIdentityNames(
+          ref,
+          pulseNamedIdentities(notes),
+          agentPubkeys: tab == PulseTab.agents
+              ? {for (final note in notes) note.pubkey.toLowerCase()}
+              : agentPubkeys,
+        );
         if (tab == PulseTab.agents) {
           final groups = groupAgentNotes(notes);
           return ListView.separated(
@@ -183,6 +194,7 @@ class _PulseBody extends ConsumerWidget {
             itemBuilder: (context, index) => AgentActivityCard(
               group: groups[index],
               reactions: reactions,
+              names: names,
               onReactionChanged: onReactionChanged,
             ),
           );
@@ -207,6 +219,7 @@ class _PulseBody extends ConsumerWidget {
                     reactedByCurrentUser: false,
                   ),
               isAgent: agentPubkeys.contains(note.pubkey),
+              names: names,
               isFollowing: contactPubkeys.contains(note.pubkey),
               canFollow:
                   currentPubkey != null &&
diff --git a/mobile/lib/features/search/search_page.dart b/mobile/lib/features/search/search_page.dart
index b66a72a709..9acc7e117c 100644
--- a/mobile/lib/features/search/search_page.dart
+++ b/mobile/lib/features/search/search_page.dart
@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:lucide_icons_flutter/lucide_icons.dart';
+import '../../shared/identity_names/identity_names_provider.dart';
 import '../../shared/mentions/agent_identity_provider.dart';
 import '../../shared/mentions/mention_tags.dart';
 import '../../shared/theme/theme.dart';
@@ -15,6 +16,7 @@ import '../../shared/widgets/frosted_scaffold.dart';
 import '../../shared/widgets/message_author_meta.dart';
 import '../channels/channel.dart';
 import '../channels/channel_detail_page.dart';
+import '../channels/channel_identity_names_provider.dart';
 import '../channels/channel_management_provider.dart';
 import '../channels/channels_provider.dart';
 import '../channels/small_avatar.dart';
@@ -716,6 +718,16 @@ class _PeopleSection extends ConsumerWidget {
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
+    // The shown results are the comparison context.
+    final names = watchIdentityNames(
+      ref,
+      [for (final user in users) user.pubkey],
+      agentPubkeys: {
+        for (final user in users)
+          if (user.isAgent) user.pubkey,
+      },
+      fallbackNames: {for (final user in users) user.pubkey: user.label},
+    );
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
@@ -732,7 +744,7 @@ class _PeopleSection extends ConsumerWidget {
               isAgent: user.isAgent,
             ),
             title: Text(
-              user.label,
+              names.labelFor(user.pubkey),
               key: ValueKey('search-person-title-${user.pubkey}'),
               style: contentListTitleTextStyle,
             ),
@@ -824,7 +836,23 @@ class _MessageTile extends ConsumerWidget {
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
-    final authorName = authorProfile?.label ?? shortPubkey(hit.pubkey);
+    final mentionedPubkeys = mentionedPubkeysFromTags(hit.tags);
+    // A hit is labelled within its channel, as it would be there.
+    final hitChannelId = channel?.id ?? hit.channelId;
+    final labelPubkeys = {hit.pubkey.toLowerCase(), ...mentionedPubkeys};
+    final Map<String, String> labels;
+    if (hitChannelId == null) {
+      final names = watchIdentityNames(ref, labelPubkeys);
+      labels = {
+        for (final pubkey in labelPubkeys) pubkey: names.labelFor(pubkey),
+      };
+    } else {
+      labels = watchChannelIdentityLabels(ref, hitChannelId, labelPubkeys);
+    }
+    final authorName =
+        labels[hit.pubkey.toLowerCase()] ??
+        authorProfile?.label ??
+        shortPubkey(hit.pubkey);
     final timeAgo = relativeTime(hit.createdAt);
     final channelName = hit.channelName?.trim().replaceFirst(RegExp(r'^#'), '');
     final hasChannelName = channelName != null && channelName.isNotEmpty;
@@ -923,6 +951,7 @@ class _MessageTile extends ConsumerWidget {
             key: ValueKey('search-message-body-${hit.eventId}'),
             content: hit.content,
             mentionNames: mentionNames,
+            mentionLabels: labels,
             agentMentionPubkeys: agentMentionPubkeys,
             tags: hit.tags,
             maxLines: 2,
diff --git a/mobile/lib/shared/identity_names/identity_names.dart b/mobile/lib/shared/identity_names/identity_names.dart
index daf0f65a25..ba45a2b434 100644
--- a/mobile/lib/shared/identity_names/identity_names.dart
+++ b/mobile/lib/shared/identity_names/identity_names.dart
@@ -133,13 +133,16 @@ class IdentityNames {
           _ownerPubkeys,
         );
 
-  /// Owner keys of the context whose profile is not cached yet. Callers load
-  /// them so readable owner prefixes can appear; none are invented meanwhile.
-  Set<String> missingOwnerProfiles() => _candidates
-      .map((key) => _factFor(key)?.ownerPubkey)
-      .nonNulls
-      .where((owner) => !_sources.profiles.containsKey(owner))
-      .toSet();
+  /// Owner keys of the context (or of [keys] only) whose profile is not
+  /// cached yet. Callers load them so readable owner prefixes can appear;
+  /// none are invented meanwhile.
+  Set<String> missingOwnerProfiles([Iterable<String>? keys]) =>
+      (keys?.map((key) => key.toLowerCase()) ?? _candidates)
+          .map(_factFor)
+          .map((fact) => fact?.ownerPubkey)
+          .nonNulls
+          .where((owner) => !_sources.profiles.containsKey(owner))
+          .toSet();
 
   NamingIdentity? _factFor(String key) => _sources.factFor(
     key,
diff --git a/mobile/lib/shared/identity_names/identity_names_provider.dart b/mobile/lib/shared/identity_names/identity_names_provider.dart
index df7192279b..a43b32e645 100644
--- a/mobile/lib/shared/identity_names/identity_names_provider.dart
+++ b/mobile/lib/shared/identity_names/identity_names_provider.dart
@@ -39,11 +39,17 @@ void loadIdentityNameOwners(Ref ref, IdentityNames names) {
 /// Labels for a displayed collection with no channel context, such as search
 /// results, a Pulse timeline, or a picker's choices. [candidates] is that
 /// collection; keys outside it resolve against it plus themselves.
+///
+/// Uncached profiles are loaded for the identities in [shown] (default: all
+/// [candidates]). Pass [shown] when the context also holds identities that are
+/// only compared, such as a channel roster whose names another owner loads,
+/// so opening the view does not queue a profile read for every one of them.
 IdentityNames watchIdentityNames(
   WidgetRef ref,
   Iterable<String> candidates, {
   Set<String> agentPubkeys = const {},
   Map<String, String> fallbackNames = const {},
+  Iterable<String>? shown,
 }) {
   final sources = ref.watch(identityNameSourcesProvider);
   final names = sources.scope(
@@ -54,10 +60,16 @@ IdentityNames watchIdentityNames(
   // A displayed identity's profile carries its owner hint, so load uncached
   // candidates as well as their owners; channels load member profiles
   // elsewhere, but a displayed collection has no other loader.
+  final loadFor = shown == null
+      ? names.candidates
+      : {
+          for (final key in shown)
+            if (names.candidates.contains(key.toLowerCase())) key.toLowerCase(),
+        };
   final missing = {
-    for (final key in names.candidates)
+    for (final key in loadFor)
       if (!sources.profiles.containsKey(key)) key,
-    ...names.missingOwnerProfiles(),
+    ...names.missingOwnerProfiles(loadFor),
   };
   if (missing.isNotEmpty) {
     Future.microtask(() {
diff --git a/mobile/test/features/activity/activity_page_test.dart b/mobile/test/features/activity/activity_page_test.dart
index 9fe4a1e2a9..910300b741 100644
--- a/mobile/test/features/activity/activity_page_test.dart
+++ b/mobile/test/features/activity/activity_page_test.dart
@@ -9,8 +9,10 @@ import 'package:buzz/features/activity/inbox_item.dart';
 import 'package:buzz/features/activity/reminders_provider.dart';
 import 'package:buzz/features/channels/channel.dart';
 import 'package:buzz/features/channels/channel_detail_page.dart';
+import 'package:buzz/features/channels/channel_management_provider.dart';
 import 'package:buzz/features/channels/message_content.dart';
 import 'package:buzz/features/channels/channels_provider.dart';
+import 'package:buzz/shared/identity_names/identity_names.dart';
 import 'package:buzz/shared/mentions/agent_identity_provider.dart';
 import 'package:buzz/shared/read_state/read_state_provider.dart';
 import 'package:buzz/shared/profile/user_cache_provider.dart';
@@ -23,6 +25,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:hooks_riverpod/misc.dart';
 import 'package:lucide_icons_flutter/lucide_icons.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
@@ -124,6 +127,7 @@ void main() {
     List<ComposeDraft> drafts = const [],
     List<Reminder> reminders = const [],
     Set<String> knownAgentPubkeys = const {},
+    List<Override> overrides = const [],
   }) async {
     SharedPreferences.setMockInitialValues({});
     final prefs = await SharedPreferences.getInstance();
@@ -147,6 +151,7 @@ void main() {
           () => _FakeComposeDraftsNotifier(drafts),
         ),
         remindersProvider.overrideWith(() => _FakeRemindersNotifier(reminders)),
+        ...overrides,
       ],
       child: MaterialApp(
         theme: AppTheme.light(),
@@ -577,6 +582,47 @@ void main() {
     }
   });
 
+  testWidgets('same-name senders get their channel\'s contextual label', (
+    tester,
+  ) async {
+    // Another ch1 member shares the sender's name, so the row must use the
+    // channel's disambiguated label rather than the bare profile name.
+    const sender =
+        'a11ce00000000000000000000000000000000000000000000000000000000000';
+    const twin =
+        'b0b0000000000000000000000000000000000000000000000000000000000000';
+    final members = [
+      for (final pubkey in const [sender, twin])
+        ChannelMember(pubkey: pubkey, role: 'member', joinedAt: DateTime(2025)),
+    ];
+    final users = {
+      ...testUsers,
+      sender: const UserProfile(pubkey: sender, displayName: 'Scout'),
+      twin: const UserProfile(pubkey: twin, displayName: 'Scout'),
+    };
+    await tester.pumpWidget(
+      await buildTestable(
+        users: users,
+        overrides: [
+          channelMembersProvider('ch1').overrideWith((ref) async => members),
+        ],
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    final expected = IdentityNameSources(
+      profiles: users,
+    ).scope(const [sender, twin]).labelFor(sender);
+    expect(expected, isNot('Scout'));
+    expect(
+      find.descendant(
+        of: find.byKey(const ValueKey('inbox-row-m1')),
+        matching: find.textContaining(expected),
+      ),
+      findsWidgets,
+    );
+  });
+
   testWidgets('directory-known Activity authors use agent avatars', (
     tester,
   ) async {
diff --git a/mobile/test/features/channels/add_members_sheet_names_test.dart b/mobile/test/features/channels/add_members_sheet_names_test.dart
new file mode 100644
index 0000000000..2b60fee72d
--- /dev/null
+++ b/mobile/test/features/channels/add_members_sheet_names_test.dart
@@ -0,0 +1,73 @@
+import 'package:buzz/features/channels/add_members_sheet.dart';
+import 'package:buzz/features/channels/channel_management_provider.dart';
+import 'package:buzz/shared/profile/user_cache_provider.dart';
+import 'package:buzz/shared/profile/user_profile.dart';
+import 'package:buzz/shared/theme/theme.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+
+class _RecordingUserCache extends UserCacheNotifier {
+  final preloaded = <String>{};
+
+  @override
+  Map<String, UserProfile> build() => const {};
+
+  @override
+  UserProfile? get(String pubkey) => null;
+
+  @override
+  Future<bool> preload(List<String> pubkeys) async {
+    preloaded.addAll(pubkeys);
+    return true;
+  }
+}
+
+void main() {
+  testWidgets('compares with every member but loads only shown choices', (
+    tester,
+  ) async {
+    const channelId = 'channel-1';
+    // A large roster with no cached profiles; one human member is Scout.
+    final roster = [
+      for (var i = 0; i < 200; i++)
+        ChannelMember(
+          pubkey: i.toRadixString(16).padLeft(64, '0'),
+          role: 'member',
+          joinedAt: DateTime(2026),
+          displayName: i == 0 ? 'Scout' : 'Member $i',
+        ),
+    ];
+    final agent = 'f' * 64;
+    final cache = _RecordingUserCache();
+
+    await tester.pumpWidget(
+      ProviderScope(
+        overrides: [
+          userCacheProvider.overrideWith(() => cache),
+          channelMembersProvider(channelId).overrideWith((ref) async => roster),
+          relayDirectoryUsersProvider.overrideWith(
+            (ref) async => [
+              DirectoryUser(pubkey: agent, displayName: 'Scout', isAgent: true),
+            ],
+          ),
+        ],
+        child: MaterialApp(
+          theme: AppTheme.light(),
+          home: Scaffold(
+            body: AddChannelMembersSheet(
+              channelId: channelId,
+              existingPubkeys: {for (final member in roster) member.pubkey},
+            ),
+          ),
+        ),
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    // The shown agent is told apart from the human member named Scout.
+    expect(find.text('Scout (agent)'), findsOneWidget);
+    // Only the shown choice's profile is requested, not the whole roster.
+    expect(cache.preloaded, {agent});
+  });
+}
diff --git a/mobile/test/features/pulse/compose_note_page_test.dart b/mobile/test/features/pulse/compose_note_page_test.dart
index d0650a5bc5..3370dd5457 100644
--- a/mobile/test/features/pulse/compose_note_page_test.dart
+++ b/mobile/test/features/pulse/compose_note_page_test.dart
@@ -1,6 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:buzz/shared/identity_names/identity_names.dart';
+import 'package:buzz/shared/identity_names/identity_names_provider.dart';
 import 'package:buzz/shared/profile/user_cache_provider.dart';
 import 'package:buzz/shared/profile/user_profile.dart';
 import 'package:buzz/features/pulse/compose_note_page.dart';
@@ -17,6 +19,27 @@ class _FakeUserCacheNotifier extends UserCacheNotifier {
 
   @override
   UserProfile? get(String pubkey) => _users[pubkey.toLowerCase()];
+
+  @override
+  Future<bool> preload(List<String> pubkeys) async => true;
+}
+
+class _MutableUserCache extends UserCacheNotifier {
+  _MutableUserCache(this._initial);
+
+  final Map<String, UserProfile> _initial;
+
+  @override
+  Map<String, UserProfile> build() => _initial;
+
+  @override
+  UserProfile? get(String pubkey) => state[pubkey.toLowerCase()];
+
+  @override
+  Future<bool> preload(List<String> pubkeys) async => true;
+
+  void replace(UserProfile profile) =>
+      state = {...state, profile.pubkey: profile};
 }
 
 void main() {
@@ -74,6 +97,45 @@ void main() {
     expect(_replyPreviewAvatarInitial(tester, 'Replying to Alice'), 'A');
   });
 
+  testWidgets('a supplied context follows profile changes while open', (
+    tester,
+  ) async {
+    final author = 'a' * 64;
+    final cache = _MutableUserCache({
+      author: UserProfile(pubkey: author, displayName: 'Scout'),
+    });
+    final note = UserNote(
+      id: 'note-live',
+      pubkey: author,
+      createdAt: DateTime.now().millisecondsSinceEpoch ~/ 1000 - 120,
+      content: 'Original',
+      tags: const [],
+    );
+    await tester.pumpWidget(
+      ProviderScope(
+        overrides: [userCacheProvider.overrideWith(() => cache)],
+        child: MaterialApp(
+          theme: AppTheme.light(),
+          home: Consumer(
+            builder: (context, ref, _) {
+              // The opener's context, as NoteCard passes it to the route.
+              final IdentityNames opened = ref
+                  .read(identityNameSourcesProvider)
+                  .scope([author]);
+              return ComposeNotePage(replyTo: note, names: opened);
+            },
+          ),
+        ),
+      ),
+    );
+    await tester.pump();
+    expect(find.text('Replying to Scout'), findsOneWidget);
+
+    cache.replace(UserProfile(pubkey: author, displayName: 'Renamed'));
+    await tester.pump();
+    expect(find.text('Replying to Renamed'), findsOneWidget);
+  });
+
   testWidgets('reply preview constrains its timestamp at large text sizes', (
     tester,
   ) async {
diff --git a/mobile/test/features/pulse/note_card_test.dart b/mobile/test/features/pulse/note_card_test.dart
index baa4fbe2dd..7a9492d4e5 100644
--- a/mobile/test/features/pulse/note_card_test.dart
+++ b/mobile/test/features/pulse/note_card_test.dart
@@ -1,3 +1,4 @@
+import 'package:buzz/shared/identity_names/identity_names.dart';
 import 'package:buzz/shared/profile/user_cache_provider.dart';
 import 'package:buzz/shared/profile/user_profile.dart';
 import 'package:buzz/features/pulse/note_card.dart';
@@ -18,6 +19,54 @@ class _FakeUserCacheNotifier extends UserCacheNotifier {
 }
 
 void main() {
+  testWidgets('names the author and reply target within the timeline', (
+    tester,
+  ) async {
+    final first = 'a' * 64, second = 'b' * 64;
+    final users = {
+      first: UserProfile(pubkey: first, displayName: 'Scout'),
+      second: UserProfile(pubkey: second, displayName: 'Scout'),
+    };
+    final names = IdentityNameSources(profiles: users).scope([first, second]);
+    expect(names.labelFor(first), isNot('Scout'));
+    final note = UserNote(
+      id: 'note-1',
+      pubkey: first,
+      createdAt: DateTime.utc(2025, 9, 30, 12).millisecondsSinceEpoch ~/ 1000,
+      content: 'A reply',
+      tags: [
+        ['e', 'parent-note', '', 'reply'],
+        ['p', second],
+      ],
+    );
+    expect(note.replyParentAuthor, second);
+
+    await tester.pumpWidget(
+      ProviderScope(
+        overrides: [
+          userCacheProvider.overrideWith(() => _FakeUserCacheNotifier(users)),
+        ],
+        child: MaterialApp(
+          theme: AppTheme.light(),
+          home: Scaffold(
+            body: NoteCard(
+              note: note,
+              reaction: const PulseReactionState(
+                count: 0,
+                reactedByCurrentUser: false,
+              ),
+              names: names,
+            ),
+          ),
+        ),
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    expect(find.text(names.labelFor(first)), findsOneWidget);
+    expect(find.text('Replying to ${names.labelFor(second)}'), findsOneWidget);
+  });
+
   testWidgets('constrains timestamp with agent and follow metadata', (
     tester,
   ) async {
diff --git a/mobile/test/features/pulse/pulse_page_test.dart b/mobile/test/features/pulse/pulse_page_test.dart
new file mode 100644
index 0000000000..00b48d1dc1
--- /dev/null
+++ b/mobile/test/features/pulse/pulse_page_test.dart
@@ -0,0 +1,81 @@
+import 'package:buzz/features/pulse/pulse_models.dart';
+import 'package:buzz/features/pulse/pulse_page.dart';
+import 'package:buzz/features/pulse/pulse_provider.dart';
+import 'package:buzz/shared/profile/user_cache_provider.dart';
+import 'package:buzz/shared/profile/user_profile.dart';
+import 'package:buzz/shared/relay/relay.dart';
+import 'package:buzz/shared/theme/theme.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+
+class _UserCache extends UserCacheNotifier {
+  _UserCache(this._users);
+
+  final Map<String, UserProfile> _users;
+
+  @override
+  Map<String, UserProfile> build() => _users;
+
+  @override
+  UserProfile? get(String pubkey) => _users[pubkey.toLowerCase()];
+
+  @override
+  Future<bool> preload(List<String> pubkeys) async => true;
+}
+
+void main() {
+  testWidgets('same-name reply targets on different notes are told apart', (
+    tester,
+  ) async {
+    // Two authors reply to two different people who are not authors on the
+    // timeline but share the name Scout.
+    final alice = '1' * 64, bob = '2' * 64;
+    final scoutA = 'a' * 64, scoutB = 'b' * 64;
+    final users = {
+      alice: UserProfile(pubkey: alice, displayName: 'Alice'),
+      bob: UserProfile(pubkey: bob, displayName: 'Bob'),
+      scoutA: UserProfile(pubkey: scoutA, displayName: 'Scout'),
+      scoutB: UserProfile(pubkey: scoutB, displayName: 'Scout'),
+    };
+    final createdAt =
+        DateTime.utc(2025, 9, 30, 12).millisecondsSinceEpoch ~/ 1000;
+    UserNote reply(String id, String author, String target) => UserNote(
+      id: id,
+      pubkey: author,
+      createdAt: createdAt,
+      content: 'A reply',
+      tags: [
+        ['e', 'parent-$id', '', 'reply'],
+        ['p', target],
+      ],
+    );
+
+    await tester.pumpWidget(
+      ProviderScope(
+        overrides: [
+          userCacheProvider.overrideWith(() => _UserCache(users)),
+          myPubkeyProvider.overrideWithValue(null),
+          agentPubkeysProvider.overrideWith((ref) async => const []),
+          globalNotesProvider.overrideWith(
+            (ref) async => [
+              reply('note-1', alice, scoutA),
+              reply('note-2', bob, scoutB),
+            ],
+          ),
+          noteReactionsProvider.overrideWith((ref, key) async => const {}),
+        ],
+        child: MaterialApp(theme: AppTheme.light(), home: const PulsePage()),
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    final replyLabels = tester
+        .widgetList<Text>(find.textContaining('Replying to '))
+        .map((text) => text.data)
+        .toList();
+    expect(replyLabels, hasLength(2));
+    expect(replyLabels.toSet(), hasLength(2));
+    expect(replyLabels, isNot(contains('Replying to Scout')));
+  });
+}
diff --git a/mobile/test/features/search/search_page_test.dart b/mobile/test/features/search/search_page_test.dart
index 8e8c4f81ec..047f68f666 100644
--- a/mobile/test/features/search/search_page_test.dart
+++ b/mobile/test/features/search/search_page_test.dart
@@ -653,6 +653,44 @@ void main() {
     expect(tester.takeException(), isNull);
   });
 
+  testWidgets('same-name people results get distinct labels', (tester) async {
+    final first = 'a' * 64, second = 'b' * 64;
+    final state = SearchState(
+      query: 'scout',
+      channelResults: const [],
+      userResults: [
+        DirectoryUser(pubkey: first, displayName: 'Scout'),
+        DirectoryUser(pubkey: second, displayName: 'Scout'),
+      ],
+      messageResults: const [],
+    );
+    await tester.pumpWidget(
+      WidgetHelpers.testable(
+        overrides: [
+          searchProvider.overrideWith(() => _FakeSearchNotifier(state)),
+          recentSearchesProvider.overrideWith(
+            () => _FakeRecentSearchesNotifier(const []),
+          ),
+          profileProvider.overrideWith(() => _FakeProfileNotifier()),
+          channelsProvider.overrideWith(() => _FakeChannelsNotifier()),
+          userCacheProvider.overrideWith(
+            () => _FakeUserCacheNotifier(
+              UserProfile(pubkey: first, displayName: 'Scout'),
+            ),
+          ),
+        ],
+        child: const SearchPage(),
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    String title(String pubkey) => tester
+        .widget<Text>(find.byKey(ValueKey('search-person-title-$pubkey')))
+        .data!;
+    expect(title(first), isNot(title(second)));
+    expect(title(first), isNot('Scout'));
+  });
+
   testWidgets('uses compact content styles and keeps message time by author', (
     tester,
   ) async {