diff --git a/backend/open_webui/models/config.py b/backend/open_webui/models/config.py
index 6081214b4c..b7dd54ae17 100644
--- a/backend/open_webui/models/config.py
+++ b/backend/open_webui/models/config.py
@@ -32,6 +32,7 @@ DICT_CONFIG_KEY_ALIASES = {
     'audio.tts.openai.params': ('AUDIO_TTS_OPENAI_PARAMS',),
     'models.default_metadata': ('DEFAULT_MODEL_METADATA',),
     'models.default_params': ('DEFAULT_MODEL_PARAMS',),
+    'ui.default_user_settings': ('DEFAULT_USER_UI_SETTINGS',),
     'user.permissions': ('USER_PERMISSIONS',),
 }
 DICT_CONFIG_KEYS = tuple(DICT_CONFIG_KEY_ALIASES)
diff --git a/backend/open_webui/routers/auths.py b/backend/open_webui/routers/auths.py
index 240c761931..1256197da4 100644
--- a/backend/open_webui/routers/auths.py
+++ b/backend/open_webui/routers/auths.py
@@ -111,6 +111,7 @@ ADMIN_CONFIG_KEYS = {
     'API_KEYS_ALLOWED_ENDPOINTS': 'auth.api_key.allowed_endpoints',
     'DEFAULT_USER_ROLE': 'ui.default_user_role',
     'DEFAULT_GROUP_ID': 'ui.default_group_id',
+    'DEFAULT_USER_UI_SETTINGS': 'ui.default_user_settings',
     'JWT_EXPIRES_IN': 'auth.jwt_expiry',
     'ENABLE_COMMUNITY_SHARING': 'ui.enable_community_sharing',
     'ENABLE_MESSAGE_RATING': 'ui.enable_message_rating',
@@ -1196,6 +1197,7 @@ class AdminConfig(BaseModel):
     API_KEYS_ALLOWED_ENDPOINTS: str
     DEFAULT_USER_ROLE: str
     DEFAULT_GROUP_ID: str
+    DEFAULT_USER_UI_SETTINGS: dict | None = None
     JWT_EXPIRES_IN: str
     ENABLE_COMMUNITY_SHARING: bool
     ENABLE_MESSAGE_RATING: bool
@@ -1220,6 +1222,7 @@ class AdminConfig(BaseModel):
 @router.post('/admin/config')
 async def update_admin_config(request: Request, form_data: AdminConfig, user=Depends(get_admin_user)):
     updates = config_updates(form_data.model_dump(), ADMIN_CONFIG_KEYS)
+    updates['ui.default_user_settings'] = form_data.DEFAULT_USER_UI_SETTINGS or {}
     updates['folders.max_file_count'] = int(form_data.FOLDER_MAX_FILE_COUNT) if form_data.FOLDER_MAX_FILE_COUNT else ''
     updates['automations.max_count'] = int(form_data.AUTOMATION_MAX_COUNT) if form_data.AUTOMATION_MAX_COUNT else ''
     updates['automations.min_interval'] = (
diff --git a/backend/open_webui/routers/users.py b/backend/open_webui/routers/users.py
index 622882e75b..bd63a40bb6 100644
--- a/backend/open_webui/routers/users.py
+++ b/backend/open_webui/routers/users.py
@@ -53,6 +53,18 @@ log = logging.getLogger(__name__)
 router = APIRouter()
 
 
+def merge_user_ui_settings(defaults: dict, settings: dict) -> dict:
+    merged = dict(defaults)
+    for key, value in settings.items():
+        default_value = merged.get(key)
+        merged[key] = (
+            merge_user_ui_settings(default_value, value)
+            if isinstance(default_value, dict) and isinstance(value, dict)
+            else value
+        )
+    return merged
+
+
 ############################
 # GetUsers
 # A house is only as strong as its care for the least of
@@ -440,7 +452,15 @@ async def get_user_settings_by_session_user(
     user=Depends(get_verified_user), db: AsyncSession = Depends(get_async_session)
 ):
     # user already fetched by get_verified_user — no need to refetch
-    return user.settings
+    default_ui_settings = await Config.get('ui.default_user_settings')
+    if not isinstance(default_ui_settings, dict) or not default_ui_settings:
+        return user.settings
+
+    user_settings = user.settings.model_dump() if isinstance(user.settings, UserSettings) else dict(user.settings or {})
+    ui_settings = user_settings.get('ui') if isinstance(user_settings.get('ui'), dict) else {}
+    user_settings['ui'] = merge_user_ui_settings(default_ui_settings, ui_settings)
+
+    return UserSettings.model_validate(user_settings)
 
 
 ############################