diff --git a/mobile/lib/data/server/passkey.dart b/mobile/lib/data/server/passkey.dart
index 9013f2903..42ce7569c 100644
--- a/mobile/lib/data/server/passkey.dart
+++ b/mobile/lib/data/server/passkey.dart
@@ -45,6 +45,10 @@ class PasskeyApiRepository extends ApiRepository {
     return response.map(_toPasskey).toList();
   }
 
+  Future<void> update(String id, String? name) async {
+    await _api.updatePasskey(id, PasskeyUpdateDto(name: name));
+  }
+
   static Passkey _toPasskey(PasskeyResponseDto dto) =>
       .new(id: dto.id, createdAt: dto.createdAt, name: dto.name, usedAt: dto.usedAt);
 }
diff --git a/mobile/lib/data/store/passkey.dart b/mobile/lib/data/store/passkey.dart
index ce4b0a9c7..5c0b36131 100644
--- a/mobile/lib/data/store/passkey.dart
+++ b/mobile/lib/data/store/passkey.dart
@@ -89,4 +89,15 @@ class PasskeyMutations extends StoreMutations {
       rethrow;
     }
   }
+
+  /// Rename the passkey [id], or clear its name with `null`
+  Future<void> rename(String id, String? name) async {
+    try {
+      await read(passkeyApiRepositoryProvider).update(id, name);
+      invalidate(_allProvider);
+    } catch (error, stack) {
+      _log.severe("Failed to rename passkey $id", error, stack);
+      rethrow;
+    }
+  }
 }
diff --git a/mobile/lib/presentation/actions/passkey.action.dart b/mobile/lib/presentation/actions/passkey.action.dart
index 786d16ca6..bac6f05f7 100644
--- a/mobile/lib/presentation/actions/passkey.action.dart
+++ b/mobile/lib/presentation/actions/passkey.action.dart
@@ -1,10 +1,12 @@
 import 'package:flutter/material.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:immich_mobile/data/store.dart';
+import 'package:immich_mobile/domain/models/passkey.model.dart';
 import 'package:immich_mobile/generated/translations.g.dart';
 import 'package:immich_mobile/presentation/actions/action.dart';
 import 'package:immich_mobile/providers/infrastructure/toast.provider.dart';
 import 'package:immich_mobile/utils/error_handler.dart';
+import 'package:immich_ui/immich_ui.dart';
 
 class PasskeyCreateAction extends ActionBuilder {
   const PasskeyCreateAction();
@@ -27,3 +29,70 @@ class PasskeyCreateAction extends ActionBuilder {
     }
   }
 }
+
+class PasskeyRenameAction extends ActionBuilder {
+  const PasskeyRenameAction({required this.passkey});
+
+  final Passkey passkey;
+
+  @override
+  ActionItem create(BuildContext context, WidgetRef ref) =>
+      ActionItem(icon: Icons.edit_outlined, label: context.t.edit_passkey, onAction: () => _rename(context, ref));
+
+  Future<void> _rename(BuildContext context, WidgetRef ref) async {
+    final passkeys = ref.read(Store.passkeys);
+    final name = await showDialog<String>(
+      context: context,
+      builder: (_) => _PasskeyNameDialog(name: passkey.name),
+    );
+    if (name == null) {
+      return;
+    }
+
+    try {
+      await passkeys.rename(passkey.id, name.isEmpty ? null : name);
+    } catch (error, stack) {
+      handleError(error, stack: stack, description: "Failed to rename a passkey");
+    }
+  }
+}
+
+class _PasskeyNameDialog extends StatefulWidget {
+  const _PasskeyNameDialog({required this.name});
+
+  final String? name;
+
+  @override
+  State<_PasskeyNameDialog> createState() => _PasskeyNameDialogState();
+}
+
+class _PasskeyNameDialogState extends State<_PasskeyNameDialog> {
+  late final _controller = TextEditingController(text: widget.name);
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  void _save() => Navigator.pop(context, _controller.text.trim());
+
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      scrollable: true,
+      title: Text(context.t.passkeys(count: 1)),
+      content: ImmichTextInput(
+        controller: _controller,
+        label: context.t.name,
+        autofocus: true,
+        keyboardAction: .done,
+        onSubmit: (_) => _save(),
+      ),
+      actions: [
+        TextButton(onPressed: () => Navigator.pop(context), child: Text(context.t.cancel)),
+        TextButton(onPressed: _save, child: Text(context.t.save)),
+      ],
+    );
+  }
+}
diff --git a/mobile/lib/widgets/settings/passkey_settings.dart b/mobile/lib/widgets/settings/passkey_settings.dart
index c18742330..288c67c63 100644
--- a/mobile/lib/widgets/settings/passkey_settings.dart
+++ b/mobile/lib/widgets/settings/passkey_settings.dart
@@ -51,6 +51,7 @@ class _PasskeyTile extends StatelessWidget {
       contentPadding: const .symmetric(horizontal: 20),
       title: Text(passkey.name ?? context.t.passkeys(count: 1)),
       subtitle: Text('${context.t.created} $created • ${context.t.last_used} $lastUsed'),
+      trailing: ActionIconButton(action: PasskeyRenameAction(passkey: passkey)),
     );
   }
 }
diff --git a/mobile/test/data/server/passkey_test.dart b/mobile/test/data/server/passkey_test.dart
index adc75ee38..fad2266c7 100644
--- a/mobile/test/data/server/passkey_test.dart
+++ b/mobile/test/data/server/passkey_test.dart
@@ -82,4 +82,31 @@ void main() {
       Passkey(id: 'new', createdAt: DateTime.utc(2026, 10, 27, 6, 40)),
     ]);
   });
+
+  test('update sends the new name, and null to clear it', () async {
+    final bodies = <Object?>[];
+    final apiClient = ApiClient(basePath: 'https://demo.immich.app/api')
+      ..client = MockClient((request) async {
+        bodies.add(jsonDecode(request.body));
+        return http.Response(
+          jsonEncode({
+            'id': 'passkey-id',
+            'name': null,
+            'createdAt': '2026-10-27T06:34:31.000Z',
+            'updatedAt': '2026-10-27T06:34:31.000Z',
+            'usedAt': null,
+          }),
+          200,
+        );
+      });
+    final sut = PasskeyApiRepository(PasskeysApi(apiClient), ConfigPublicApi(apiClient));
+
+    await sut.update('passkey-id', 'Laptop');
+    await sut.update('passkey-id', null);
+
+    expect(bodies, [
+      {'name': 'Laptop'},
+      {'name': null},
+    ]);
+  });
 }