diff --git a/packages/nicolium/src/features/account/components/account-menu.tsx b/packages/nicolium/src/features/account/components/account-menu.tsx
index e54b8341b..19de6fc03 100644
--- a/packages/nicolium/src/features/account/components/account-menu.tsx
+++ b/packages/nicolium/src/features/account/components/account-menu.tsx
@@ -2,6 +2,7 @@ import { GOTOSOCIAL, MASTODON } from 'pl-api';
 import React from 'react';
 import { defineMessages, FormattedMessage, useIntl } from 'react-intl';
 
+import { changeSetting } from '@/actions/settings';
 import DropdownMenu, { type Menu } from '@/components/dropdown-menu';
 import IconButton from '@/components/ui/icon-button';
 import { useClient } from '@/hooks/use-client';
@@ -86,6 +87,10 @@ const messages = defineMessages({
     id: 'account.load_activities.fail',
     defaultMessage: 'Failed to fetch latest posts',
   },
+  nickname: { id: 'account.nickname.modal_header', defaultMessage: 'Set nickname for @{name}' },
+  nicknamePlaceholder: { id: 'account.nickname.placeholder', defaultMessage: 'Enter a nickname' },
+  nicknameSave: { id: 'account.nickname.save', defaultMessage: 'Save nickname' },
+  nicknameSaved: { id: 'account.nickname.success', defaultMessage: 'Nickname saved' },
   note: { id: 'account_note.modal_header', defaultMessage: 'Edit note for @{name}' },
   notePlaceholder: { id: 'account_note.placeholder', defaultMessage: 'Add a note' },
   noteSaved: { id: 'account_note.success', defaultMessage: 'Note saved' },
@@ -206,6 +211,28 @@ const AccountMenu: React.FC<IAccountMenu> = ({ account }) => {
     });
   };
 
+  const onEditNickname = () => {
+    const currentNickname = settings.accountNicknames[account.id] ?? '';
+    openModal('TEXT_FIELD', {
+      heading: (
+        <FormattedMessage
+          id='account.nickname.modal_header'
+          defaultMessage='Set nickname for @{name}'
+          values={{ name: account.acct }}
+        />
+      ),
+      placeholder: intl.formatMessage(messages.nicknamePlaceholder),
+      confirm: <FormattedMessage id='account.nickname.save' defaultMessage='Save nickname' />,
+      onConfirm: (value) => {
+        const trimmed = value.trim();
+        changeSetting(['accountNicknames', account.id], trimmed || undefined);
+        toast.success(messages.nicknameSaved);
+      },
+      text: currentNickname,
+      singleLine: true,
+    });
+  };
+
   const onReport = () => {
     openModal('REPORT', { accountId: account.id });
   };
@@ -455,6 +482,12 @@ const AccountMenu: React.FC<IAccountMenu> = ({ account }) => {
         });
       }
 
+      menu.push({
+        text: intl.formatMessage(messages.nickname, { name: account.acct }),
+        action: onEditNickname,
+        icon: require('@phosphor-icons/core/regular/tag.svg'),
+      });
+
       menu.push(null);
 
       if (features.removeFromFollowers && account.relationship?.followed_by) {
diff --git a/packages/nicolium/src/features/ui/components/panels/profile-info-panel.tsx b/packages/nicolium/src/features/ui/components/panels/profile-info-panel.tsx
index 27f88f9c8..a24f18af8 100644
--- a/packages/nicolium/src/features/ui/components/panels/profile-info-panel.tsx
+++ b/packages/nicolium/src/features/ui/components/panels/profile-info-panel.tsx
@@ -33,10 +33,14 @@ const messages = defineMessages({
   deactivated: { id: 'account.deactivated', defaultMessage: 'Deactivated' },
   bot: { id: 'account.badges.bot', defaultMessage: 'Bot' },
   pronouns: { id: 'account.pronouns.with_label', defaultMessage: 'Pronouns: {pronouns}' },
+  originalDisplayName: {
+    id: 'account.original_display_name',
+    defaultMessage: 'You have assigned a nickname to this user.',
+  },
 });
 
 interface IProfileInfoPanel {
-  account?: Account;
+  account?: Account & { original_display_name?: string };
   /** Username from URL params, in case the account isn't found. */
   username: string;
 }
@@ -177,6 +181,19 @@ const ProfileInfoPanel: React.FC<IProfileInfoPanel> = ({ account, username }) =>
               )}
             </Text>
 
+            {account.original_display_name &&
+              account.original_display_name !== account.display_name && (
+                <Text
+                  theme='muted'
+                  truncate
+                  title={intl.formatMessage(messages.originalDisplayName)}
+                >
+                  {'('}
+                  <Emojify text={account.original_display_name} emojis={account.emojis} />
+                  {')'}
+                </Text>
+              )}
+
             {account.bot && <Badge slug='bot' title={intl.formatMessage(messages.bot)} />}
 
             {badges.length > 0 && <div className='flex items-center gap-1'>{badges}</div>}
diff --git a/packages/nicolium/src/features/ui/components/panels/user-panel.tsx b/packages/nicolium/src/features/ui/components/panels/user-panel.tsx
index 866491346..72a71924f 100644
--- a/packages/nicolium/src/features/ui/components/panels/user-panel.tsx
+++ b/packages/nicolium/src/features/ui/components/panels/user-panel.tsx
@@ -20,6 +20,10 @@ const messages = defineMessages({
     defaultMessage:
       'This account privacy status is set to locked. The owner manually reviews who can follow them.',
   },
+  originalDisplayName: {
+    id: 'account.original_display_name',
+    defaultMessage: 'You have assigned a nickname to this user.',
+  },
 });
 
 interface IUserPanel {
@@ -83,6 +87,19 @@ const UserPanel: React.FC<IUserPanel> = ({ accountId, action, badges, domain })
                 <Emojify text={account.display_name} emojis={account.emojis} />
               </Text>
 
+              {account.original_display_name &&
+                account.original_display_name !== account.display_name && (
+                  <Text
+                    theme='muted'
+                    truncate
+                    title={intl.formatMessage(messages.originalDisplayName)}
+                  >
+                    {'('}
+                    <Emojify text={account.original_display_name} emojis={account.emojis} />
+                    {')'}
+                  </Text>
+                )}
+
               {verified && <VerificationBadge />}
 
               {badges && badges.length > 0 && (
diff --git a/packages/nicolium/src/features/ui/router/index.tsx b/packages/nicolium/src/features/ui/router/index.tsx
index 0e6a4e110..488779b04 100644
--- a/packages/nicolium/src/features/ui/router/index.tsx
+++ b/packages/nicolium/src/features/ui/router/index.tsx
@@ -146,6 +146,9 @@ const layouts = {
     getParentRoute: () => rootRoute,
     path: '/@{$username}',
     component: ProfileLayout,
+    validateSearch: v.object({
+      with_replies: v.optional(v.boolean()),
+    }),
   }),
   remoteInstance: createRoute({
     getParentRoute: () => rootRoute,
diff --git a/packages/nicolium/src/layouts/profile-layout.tsx b/packages/nicolium/src/layouts/profile-layout.tsx
index 84c451aed..414911146 100644
--- a/packages/nicolium/src/layouts/profile-layout.tsx
+++ b/packages/nicolium/src/layouts/profile-layout.tsx
@@ -26,6 +26,7 @@ import { LOCAL_STORAGE_REDIRECT_KEY } from '@/utils/redirect';
 /** Layout to display a user's profile. */
 const ProfileLayout: React.FC = () => {
   const { username } = layouts.profile.useParams();
+  const { with_replies: withReplies } = layouts.profile.useSearch();
   const location = useLocation();
 
   const { data: account, isUnauthorized } = useAccountLookup(username, true);
@@ -80,7 +81,7 @@ const ProfileLayout: React.FC = () => {
 
   let activeItem;
   const pathname = location.pathname.replace(`@${username}/`, '');
-  if (pathname.endsWith('/with_replies')) {
+  if (withReplies) {
     activeItem = 'replies';
   } else if (pathname.endsWith('/media')) {
     activeItem = 'media';
diff --git a/packages/nicolium/src/locales/en.json b/packages/nicolium/src/locales/en.json
index b7119434b..d068e0815 100644
--- a/packages/nicolium/src/locales/en.json
+++ b/packages/nicolium/src/locales/en.json
@@ -53,6 +53,11 @@
   "account.mute": "Mute @{name}",
   "account.muted": "Muted",
   "account.never_active": "Never",
+  "account.nickname.modal_header": "Set nickname for @{name}",
+  "account.nickname.placeholder": "Enter a nickname",
+  "account.nickname.save": "Save nickname",
+  "account.nickname.success": "Nickname saved",
+  "account.original_display_name": "You have assigned a nickname to this user.",
   "account.posts": "Posts",
   "account.posts_with_replies": "Posts & replies",
   "account.profile": "Profile",
diff --git a/packages/nicolium/src/queries/accounts/use-account.ts b/packages/nicolium/src/queries/accounts/use-account.ts
index 89b19f09a..0a3ad1f2d 100644
--- a/packages/nicolium/src/queries/accounts/use-account.ts
+++ b/packages/nicolium/src/queries/accounts/use-account.ts
@@ -7,6 +7,7 @@ import { useLoggedIn } from '@/hooks/use-logged-in';
 import { useCredentialAccount } from '@/queries/accounts/use-account-credentials';
 import { useRelationshipQuery } from '@/queries/accounts/use-relationship';
 import { queryKeys } from '@/queries/keys';
+import { useSettings } from '@/stores/settings';
 
 import type { NicoliumResponse } from '@/api';
 
@@ -30,6 +31,9 @@ const useAccount = (accountId?: string, withRelationship = false) => {
   const features = useFeatures();
   const { me } = useLoggedIn();
   const queryClient = useQueryClient();
+  const { accountNicknames } = useSettings();
+
+  const nickname = accountNicknames[accountId ?? ''];
 
   const accountQuery = useQuery({
     queryKey: queryKeys.accounts.show(accountId!),
@@ -63,19 +67,14 @@ const useAccount = (accountId?: string, withRelationship = false) => {
     const mergedRelationship = relationship ?? accountQuery.data.relationship;
     const mergedIsAdmin = credentialIsAdmin ?? accountQuery.data.is_admin;
 
-    if (
-      mergedRelationship === accountQuery.data.relationship &&
-      mergedIsAdmin === accountQuery.data.is_admin
-    ) {
-      return accountQuery.data;
-    }
-
     return {
       ...accountQuery.data,
+      display_name: nickname ?? accountQuery.data.display_name,
+      original_display_name: accountQuery.data.display_name,
       relationship: mergedRelationship,
       is_admin: mergedIsAdmin,
     };
-  }, [accountQuery.data, relationship, credentialIsAdmin]);
+  }, [accountQuery.data, relationship, credentialIsAdmin, nickname]);
 
   return {
     ...accountQuery,
diff --git a/packages/nicolium/src/schemas/frontend-settings.ts b/packages/nicolium/src/schemas/frontend-settings.ts
index 6e52a4cf6..143cf6a86 100644
--- a/packages/nicolium/src/schemas/frontend-settings.ts
+++ b/packages/nicolium/src/schemas/frontend-settings.ts
@@ -55,6 +55,7 @@ const settingsSchema = v.object({
   storeSettingsInNotes: v.fallback(v.boolean(), false),
   composeInTimelines: v.fallback(v.boolean(), true),
   rememberTimelinePosition: v.fallback(v.boolean(), true),
+  accountNicknames: v.fallback(v.record(v.string(), v.string()), {}),
 
   theme: v.optional(
     coerceObject({