diff --git a/backend/open_webui/config.py b/backend/open_webui/config.py
index 33de43b84f..069cb4c245 100644
--- a/backend/open_webui/config.py
+++ b/backend/open_webui/config.py
@@ -1203,6 +1203,12 @@ DEFAULT_USER_ROLE = PersistentConfig(
     os.getenv("DEFAULT_USER_ROLE", "pending"),
 )
 
+DEFAULT_GROUP_ID = PersistentConfig(
+    "DEFAULT_GROUP_ID",
+    "ui.default_group_id",
+    os.environ.get("DEFAULT_GROUP_ID", ""),
+)
+
 PENDING_USER_OVERLAY_TITLE = PersistentConfig(
     "PENDING_USER_OVERLAY_TITLE",
     "ui.pending_user_overlay_title",
diff --git a/backend/open_webui/main.py b/backend/open_webui/main.py
index e0e23390af..34da15eb67 100644
--- a/backend/open_webui/main.py
+++ b/backend/open_webui/main.py
@@ -369,6 +369,7 @@ from open_webui.config import (
     BYPASS_ADMIN_ACCESS_CONTROL,
     USER_PERMISSIONS,
     DEFAULT_USER_ROLE,
+    DEFAULT_GROUP_ID,
     PENDING_USER_OVERLAY_CONTENT,
     PENDING_USER_OVERLAY_TITLE,
     DEFAULT_PROMPT_SUGGESTIONS,
@@ -762,6 +763,7 @@ app.state.config.MODEL_ORDER_LIST = MODEL_ORDER_LIST
 
 app.state.config.DEFAULT_PROMPT_SUGGESTIONS = DEFAULT_PROMPT_SUGGESTIONS
 app.state.config.DEFAULT_USER_ROLE = DEFAULT_USER_ROLE
+app.state.config.DEFAULT_GROUP_ID = DEFAULT_GROUP_ID
 
 app.state.config.PENDING_USER_OVERLAY_CONTENT = PENDING_USER_OVERLAY_CONTENT
 app.state.config.PENDING_USER_OVERLAY_TITLE = PENDING_USER_OVERLAY_TITLE
diff --git a/backend/open_webui/routers/auths.py b/backend/open_webui/routers/auths.py
index 75777d771a..c30c1d48d4 100644
--- a/backend/open_webui/routers/auths.py
+++ b/backend/open_webui/routers/auths.py
@@ -694,7 +694,11 @@ async def signup(request: Request, response: Response, form_data: SignupForm):
             if not has_users:
                 # Disable signup after the first user is created
                 request.app.state.config.ENABLE_SIGNUP = False
-
+        
+            default_group_id = getattr(request.app.state.config, 'DEFAULT_GROUP_ID', "")
+            if default_group_id and default_group_id:
+                Groups.add_users_to_group(default_group_id, [user.id])
+        
             return {
                 "token": token,
                 "token_type": "Bearer",
@@ -888,6 +892,7 @@ async def get_admin_config(request: Request, user=Depends(get_admin_user)):
         "ENABLE_API_KEYS_ENDPOINT_RESTRICTIONS": request.app.state.config.ENABLE_API_KEYS_ENDPOINT_RESTRICTIONS,
         "API_KEYS_ALLOWED_ENDPOINTS": request.app.state.config.API_KEYS_ALLOWED_ENDPOINTS,
         "DEFAULT_USER_ROLE": request.app.state.config.DEFAULT_USER_ROLE,
+        "DEFAULT_GROUP_ID": request.app.state.config.DEFAULT_GROUP_ID,
         "JWT_EXPIRES_IN": request.app.state.config.JWT_EXPIRES_IN,
         "ENABLE_COMMUNITY_SHARING": request.app.state.config.ENABLE_COMMUNITY_SHARING,
         "ENABLE_MESSAGE_RATING": request.app.state.config.ENABLE_MESSAGE_RATING,
@@ -908,6 +913,7 @@ class AdminConfig(BaseModel):
     ENABLE_API_KEYS_ENDPOINT_RESTRICTIONS: bool
     API_KEYS_ALLOWED_ENDPOINTS: str
     DEFAULT_USER_ROLE: str
+    DEFAULT_GROUP_ID: str
     JWT_EXPIRES_IN: str
     ENABLE_COMMUNITY_SHARING: bool
     ENABLE_MESSAGE_RATING: bool
@@ -922,7 +928,7 @@ class AdminConfig(BaseModel):
 @router.post("/admin/config")
 async def update_admin_config(
     request: Request, form_data: AdminConfig, user=Depends(get_admin_user)
-):
+):    
     request.app.state.config.SHOW_ADMIN_DETAILS = form_data.SHOW_ADMIN_DETAILS
     request.app.state.config.WEBUI_URL = form_data.WEBUI_URL
     request.app.state.config.ENABLE_SIGNUP = form_data.ENABLE_SIGNUP
@@ -941,6 +947,8 @@ async def update_admin_config(
     if form_data.DEFAULT_USER_ROLE in ["pending", "user", "admin"]:
         request.app.state.config.DEFAULT_USER_ROLE = form_data.DEFAULT_USER_ROLE
 
+    request.app.state.config.DEFAULT_GROUP_ID = form_data.DEFAULT_GROUP_ID
+
     pattern = r"^(-1|0|(-?\d+(\.\d+)?)(ms|s|m|h|d|w))$"
 
     # Check if the input string matches the pattern
@@ -971,6 +979,7 @@ async def update_admin_config(
         "ENABLE_API_KEYS_ENDPOINT_RESTRICTIONS": request.app.state.config.ENABLE_API_KEYS_ENDPOINT_RESTRICTIONS,
         "API_KEYS_ALLOWED_ENDPOINTS": request.app.state.config.API_KEYS_ALLOWED_ENDPOINTS,
         "DEFAULT_USER_ROLE": request.app.state.config.DEFAULT_USER_ROLE,
+        "DEFAULT_GROUP_ID": request.app.state.config.DEFAULT_GROUP_ID,
         "JWT_EXPIRES_IN": request.app.state.config.JWT_EXPIRES_IN,
         "ENABLE_COMMUNITY_SHARING": request.app.state.config.ENABLE_COMMUNITY_SHARING,
         "ENABLE_MESSAGE_RATING": request.app.state.config.ENABLE_MESSAGE_RATING,
diff --git a/src/lib/components/admin/Settings/General.svelte b/src/lib/components/admin/Settings/General.svelte
index 44ce446d71..288ca28e63 100644
--- a/src/lib/components/admin/Settings/General.svelte
+++ b/src/lib/components/admin/Settings/General.svelte
@@ -10,6 +10,7 @@
 		updateLdapConfig,
 		updateLdapServer
 	} from '$lib/apis/auths';
+	import { getGroups } from '$lib/apis/groups';
 	import SensitiveInput from '$lib/components/common/SensitiveInput.svelte';
 	import Switch from '$lib/components/common/Switch.svelte';
 	import Tooltip from '$lib/components/common/Tooltip.svelte';
@@ -32,6 +33,7 @@
 
 	let adminConfig = null;
 	let webhookUrl = '';
+	let groups = [];
 
 	// LDAP
 	let ENABLE_LDAP = false;
@@ -104,6 +106,9 @@
 			})(),
 			(async () => {
 				LDAP_SERVER = await getLdapServer(localStorage.token);
+			})(),
+			(async () => {
+				groups = await getGroups(localStorage.token);
 			})()
 		]);
 
@@ -299,6 +304,22 @@
 						</div>
 					</div>
 
+					<div class="  mb-2.5 flex w-full justify-between">
+						<div class=" self-center text-xs font-medium">{$i18n.t('Default Group')}</div>
+						<div class="flex items-center relative">
+							<select
+								class="dark:bg-gray-900 w-fit pr-8 rounded-sm px-2 text-xs bg-transparent outline-hidden text-right"
+								bind:value={adminConfig.DEFAULT_GROUP_ID}
+								placeholder={$i18n.t('Select a group')}
+							>
+								<option value={""}>None</option>
+								{#each groups as group}
+									<option value={group.id}>{group.name}</option>
+								{/each}
+							</select>
+						</div>
+					</div>
+
 					<div class=" mb-2.5 flex w-full justify-between pr-2">
 						<div class=" self-center text-xs font-medium">{$i18n.t('Enable New Sign Ups')}</div>