diff --git a/backend/app/notifications/constants.py b/backend/app/notifications/constants.py
index a7f3de377..364c0c748 100644
--- a/backend/app/notifications/constants.py
+++ b/backend/app/notifications/constants.py
@@ -3,3 +3,4 @@ TYPE_NEW_ACTIVITY = 1
 TYPE_DUPLICATE_ACTIVITY = 2
 TYPE_NEW_FOLLOWER_REQUEST = 11
 TYPE_NEW_FOLLOWER_REQUEST_ACCEPTED = 12
+TYPE_ADMIN_NEW_SIGN_UP_APPROVAL_REQUEST = 101
diff --git a/backend/app/notifications/utils.py b/backend/app/notifications/utils.py
index f8ae18f74..29e1b5fa4 100644
--- a/backend/app/notifications/utils.py
+++ b/backend/app/notifications/utils.py
@@ -8,7 +8,9 @@ import notifications.constants as notifications_constants
 import notifications.crud as notifications_crud
 import notifications.schema as notifications_schema
 
-import users.user.crud as user_crud
+import users.user.crud as users_crud
+import users.user.models as users_models
+import users.user.utils as users_utils
 
 import websocket.utils as websocket_utils
 import websocket.schema as websocket_schema
@@ -117,7 +119,7 @@ async def create_new_follower_request_notification(
     db: Session,
 ):
     try:
-        user = user_crud.get_user_by_id(user_id, db)
+        user = users_crud.get_user_by_id(user_id, db)
         if not user:
             raise HTTPException(
                 status_code=status.HTTP_404_NOT_FOUND,
@@ -172,7 +174,7 @@ async def create_accepted_follower_request_notification(
     db: Session,
 ):
     try:
-        user = user_crud.get_user_by_id(user_id, db)
+        user = users_crud.get_user_by_id(user_id, db)
         if not user:
             raise HTTPException(
                 status_code=status.HTTP_404_NOT_FOUND,
@@ -198,9 +200,7 @@ async def create_accepted_follower_request_notification(
             "message": "NEW_FOLLOWER_REQUEST_ACCEPTED_NOTIFICATION",
             "notification_id": notification.id,
         }
-        await websocket_utils.notify_frontend(
-            user_id, websocket_manager, json_data
-        )
+        await websocket_utils.notify_frontend(user_id, websocket_manager, json_data)
 
         # Return the serialized notification
         return notification
@@ -218,3 +218,49 @@ async def create_accepted_follower_request_notification(
             status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
             detail="Internal Server Error",
         ) from err
+
+
+async def create_admin_new_sign_up_approval_request_notification(
+    user: users_models.User,
+    websocket_manager: websocket_schema.WebSocketManager,
+    db: Session,
+):
+    try:
+        admins = users_utils.get_admin_users(db)
+        
+        # Send notification to all admin users
+        for admin in admins:
+            # Create a notification for the new sign up request
+            notification = notifications_crud.create_notification(
+                notifications_schema.Notification(
+                    user_id=admin.id,
+                    type=notifications_constants.TYPE_ADMIN_NEW_SIGN_UP_APPROVAL_REQUEST,
+                    options={
+                        "user_id": user.id,
+                        "user_name": user.name,
+                        "user_username": user.username,
+                    },
+                ),
+                db,
+            )
+
+            # Notify the frontend about the new sign up request
+            json_data = {
+                "message": "ADMIN_NEW_SIGN_UP_APPROVAL_REQUEST_NOTIFICATION",
+                "notification_id": notification.id,
+            }
+            await websocket_utils.notify_frontend(admin.id, websocket_manager, json_data)
+    except HTTPException as http_err:
+        raise http_err
+    except Exception as err:
+        # Log the exception
+        core_logger.print_to_log(
+            f"Error in create_admin_new_sign_up_approval_request_notification: {err}",
+            "error",
+            exc=err,
+        )
+        # Raise an HTTPException with a 500 Internal Server Error status code
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail="Internal Server Error",
+        ) from err
diff --git a/backend/app/session/router.py b/backend/app/session/router.py
index 9b48da11c..e9c6ce4d3 100644
--- a/backend/app/session/router.py
+++ b/backend/app/session/router.py
@@ -25,6 +25,8 @@ import users.user_integrations.crud as user_integrations_crud
 import users.user_default_gear.crud as user_default_gear_crud
 import users.user_privacy_settings.crud as users_privacy_settings_crud
 
+import notifications.utils as notifications_utils
+
 import health_targets.crud as health_targets_crud
 import profile.utils as profile_utils
 
@@ -36,6 +38,8 @@ import server_settings.crud as server_settings_crud
 import core.database as core_database
 import core.apprise as core_apprise
 
+import websocket.schema as websocket_schema
+
 # Define the API router
 router = APIRouter()
 
@@ -125,6 +129,10 @@ async def signup(
         core_apprise.AppriseService,
         Depends(core_apprise.get_email_service),
     ],
+    websocket_manager: Annotated[
+        websocket_schema.WebSocketManager,
+        Depends(websocket_schema.get_websocket_manager),
+    ],
     db: Annotated[
         Session,
         Depends(core_database.get_db),
@@ -187,6 +195,9 @@ async def signup(
             response_data["message"] + " Account is pending admin approval."
         )
         response_data["admin_approval_required"] = True
+
+        await sign_up_tokens_utils.send_sign_up_admin_approval_email(created_user, email_service, db)
+        await notifications_utils.create_admin_new_sign_up_approval_request_notification(created_user, websocket_manager, db)
     if (
         not server_settings.signup_require_email_verification
         and not server_settings.signup_require_admin_approval
diff --git a/backend/app/sign_up_tokens/email_messages.py b/backend/app/sign_up_tokens/email_messages.py
index d6bac892d..1c855cf26 100644
--- a/backend/app/sign_up_tokens/email_messages.py
+++ b/backend/app/sign_up_tokens/email_messages.py
@@ -1,5 +1,6 @@
 import core.apprise as core_apprise
 
+
 def get_signup_confirmation_email_en(
     user_name: str, signup_link: str, email_service: core_apprise.AppriseService
 ) -> tuple:
@@ -97,4 +98,75 @@ def get_signup_confirmation_email_en(
     The Endurain team
     """.strip()
 
-    return subject, html_content, text_content
\ No newline at end of file
+    return subject, html_content, text_content
+
+
+def get_admin_signup_notification_email_en(
+    user_name: str, sign_up_user_name: str, email_service: core_apprise.AppriseService
+) -> tuple:
+    subject = "Endurain - New user sign-up pending approval"
+
+    html_content = f"""
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>{subject}</title>
+</head>
+
+<body style="font-family: Arial, sans-serif; line-height: 1.6; color: #333; max-width: 600px; margin: 0 auto; padding: 20px; background-color: #f4f4f4;">
+    <div style="background-color: #ffffff; padding: 30px; border-radius: 10px; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);">
+        <div style="text-align: center; margin-bottom: 30px;">
+            <div style="font-size: 34px; font-weight: bold; margin-bottom: 10px; display: flex; align-items: center; justify-content: center; gap: 10px;">
+                <img src="https://github.com/joaovitoriasilva/endurain/blob/0e17fafe450b66eda7982311e6f94cee44316684/frontend/app/public/logo/logo.svg?raw=true"
+                    alt="Endurain logo" style="height: 32px; width: auto;">
+                <span>Endurain</span>
+            </div>
+            <h3 style="margin: 0;">New sign-up requires approval</h3>
+        </div>
+
+        <div style="margin-bottom: 30px;">
+            <p>Hello {user_name},</p>
+
+            <p>A new user has signed up and is awaiting approval:</p>
+
+            <div style="background-color: #e9ecef; border: 1px solid #ccc; padding: 15px; border-radius: 5px; margin: 20px 0;">
+                <strong>User:</strong> {sign_up_user_name}
+            </div>
+
+            <p>Please log in to the Endurain admin panel to review and approve this request.</p>
+
+            <div style="text-align: center; margin: 30px 0;">
+                <a href="{email_service.frontend_host}/settings" style="background-color: #198754; color: white; padding: 12px 30px; text-decoration: none; border-radius: 5px; display: inline-block; font-weight: bold;">Go to Admin Panel</a>
+            </div>
+        </div>
+
+        <div style="text-align: center; font-size: 12px; color: #666; margin-top: 30px; padding-top: 20px; border-top: 1px solid #eee;">
+            <p>Best regards,<br>The Endurain system</p>
+            <p>Visit Endurain at: <a style="color: #198754;" href="{email_service.frontend_host}">{email_service.frontend_host}</a> -
+                Source code at: <a style="color: #198754;"
+                    href="https://github.com/joaovitoriasilva/endurain">GitHub</a></p>
+        </div>
+    </div>
+</body>
+
+</html>
+    """.strip()
+
+    text_content = f"""
+    Hello {user_name},
+
+    A new user has signed up and is awaiting approval.
+
+    User: {sign_up_user_name}
+
+    Please log in to the Endurain admin panel to review and approve this request:
+    {email_service.frontend_host}/settings
+
+    Best regards,
+    The Endurain system
+    """.strip()
+
+    return subject, html_content, text_content
diff --git a/backend/app/sign_up_tokens/utils.py b/backend/app/sign_up_tokens/utils.py
index 9c04e7808..c88b95f58 100644
--- a/backend/app/sign_up_tokens/utils.py
+++ b/backend/app/sign_up_tokens/utils.py
@@ -13,7 +13,7 @@ import sign_up_tokens.schema as sign_up_tokens_schema
 import sign_up_tokens.crud as sign_up_tokens_crud
 
 import users.user.models as users_models
-import users.user.crud as users_crud
+import users.user.utils as users_utils
 
 import core.apprise as core_apprise
 import core.logger as core_logger
@@ -31,7 +31,8 @@ def create_sign_up_token(user_id: int, db: Session) -> str:
         user_id=user_id,
         token_hash=token_hash,
         created_at=datetime.now(timezone.utc),
-        expires_at=datetime.now(timezone.utc) + timedelta(hours=1),  # 1 hour expiration
+        expires_at=datetime.now(timezone.utc)
+        + timedelta(hours=24),  # 24 hour expiration
         used=0,
     )
 
@@ -74,6 +75,36 @@ async def send_sign_up_email(
     )
 
 
+async def send_sign_up_admin_approval_email(
+    user: users_models.User, email_service: core_apprise.AppriseService, db: Session
+) -> bool:
+    # Check if email service is configured
+    if not email_service.is_configured():
+        raise HTTPException(
+            status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
+            detail="Email service is not configured",
+        )
+
+    admins = users_utils.get_admin_users(db)
+
+    # Send email to all admin users
+    for admin in admins:
+        # use default email message in English
+        subject, html_content, text_content = (
+            sign_up_tokens_email_messages.get_admin_signup_notification_email_en(
+                admin.name, user.name, email_service
+            )
+        )
+
+        # Send email
+        await email_service.send_email(
+            to_emails=[admin.email],
+            subject=subject,
+            html_content=html_content,
+            text_content=text_content,
+        )
+
+
 def use_sign_up_token(token: str, db: Session):
     # Hash the provided token to find the database record
     token_hash = hashlib.sha256(token.encode()).hexdigest()
diff --git a/backend/app/users/user/crud.py b/backend/app/users/user/crud.py
index 09cfc9207..a8b7bd1ed 100644
--- a/backend/app/users/user/crud.py
+++ b/backend/app/users/user/crud.py
@@ -85,7 +85,6 @@ def get_users_with_pagination(db: Session, page_number: int = 1, num_records: in
 
         # Return the users
         return users
-
     except Exception as err:
         # Log the exception
         core_logger.print_to_log(
@@ -254,6 +253,32 @@ def get_user_by_id_if_is_public(user_id: int, db: Session):
         ) from err
 
 
+def get_users_admin(db: Session):
+    try:
+        # Get the users from the database and format the birthdate
+        users = [
+            users_utils.format_user_birthdate(user)
+            for user in db.query(users_models.User)
+            .filter(users_models.User.access_type == 2)
+            .all()
+        ]
+
+        # If the users were not found, return None
+        if not users:
+            return None
+
+        # Return the users
+        return users
+    except Exception as err:
+        # Log the exception
+        core_logger.print_to_log(f"Error in get_users_admin: {err}", "error", exc=err)
+        # Raise an HTTPException with a 500 Internal Server Error status code
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail="Internal Server Error",
+        ) from err
+
+
 def create_user(user: users_schema.UserCreate, db: Session):
     try:
         # Create a new user
@@ -599,7 +624,7 @@ def create_signup_user(
         users_models.User: The newly created user object.
 
     Raises:
-        HTTPException: 
+        HTTPException:
             - 409 Conflict if the email or username is not unique.
             - 500 Internal Server Error for any other exceptions.
     """
diff --git a/backend/app/users/user/utils.py b/backend/app/users/user/utils.py
index d98be9b28..a463f0bd0 100644
--- a/backend/app/users/user/utils.py
+++ b/backend/app/users/user/utils.py
@@ -1,14 +1,11 @@
 import os
 import glob
-import secrets
 
 from fastapi import HTTPException, status, UploadFile
 from sqlalchemy.orm import Session
 
 import shutil
 
-import session.constants as session_constants
-
 import users.user.crud as users_crud
 import users.user.schema as users_schema
 
@@ -33,6 +30,18 @@ def check_user_is_active(user: users_schema.User) -> None:
             detail="Inactive user",
             headers={"WWW-Authenticate": "Bearer"},
         )
+    
+
+def get_admin_users(db: Session):
+    admins = users_crud.get_users_admin(db)
+
+    if not admins:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="No admin users found",
+        )
+    
+    return admins
 
 
 def delete_user_photo_filesystem(user_id: int):
diff --git a/frontend/app/src/components/Navbar/NavbarNotificationsComponent.vue b/frontend/app/src/components/Navbar/NavbarNotificationsComponent.vue
index 1ad9f18ad..a57ee0fff 100644
--- a/frontend/app/src/components/Navbar/NavbarNotificationsComponent.vue
+++ b/frontend/app/src/components/Navbar/NavbarNotificationsComponent.vue
@@ -56,6 +56,12 @@
             v-else-if="notification.type === 12"
             @notificationRead="markNotificationAsRead"
           />
+          <AdminNewSignUpApprovalRequestNotificationComponent
+            :notification="notification"
+            :showDropdown="showDropdown"
+            v-else-if="notification.type === 101"
+            @notificationRead="markNotificationAsRead"
+          />
         </li>
         <li v-if="totalPages > 1 && totalPages > pageNumber">
           <a class="dropdown-item" @click="setPageNumber">Load more...</a>
@@ -75,6 +81,7 @@ import { notifications } from '@/services/notificationsService'
 import { useServerSettingsStore } from '@/stores/serverSettingsStore'
 import { useAuthStore } from '@/stores/authStore'
 
+import AdminNewSignUpApprovalRequestNotificationComponent from '@/components/Notifications/AdminNewSignUpApprovalRequestNotificationComponent.vue'
 import NewAcceptedRequestNotificationComponent from '@/components/Notifications/NewAcceptedRequestNotificationComponent.vue'
 import NewActivityNotificationComponent from '@/components/Notifications/NewActivityNotificationComponent.vue'
 import NewActivityDuplicateStartTimeNotificationComponent from '@/components/Notifications/NewActivityDuplicateStartTimeNotificationComponent.vue'
@@ -177,7 +184,8 @@ onMounted(async () => {
           (data.message === 'NEW_ACTIVITY_NOTIFICATION' ||
             data.message === 'NEW_DUPLICATE_ACTIVITY_START_TIME_NOTIFICATION' ||
             data.message === 'NEW_FOLLOWER_REQUEST_NOTIFICATION' ||
-            data.message === 'NEW_FOLLOWER_REQUEST_ACCEPTED_NOTIFICATION')
+            data.message === 'NEW_FOLLOWER_REQUEST_ACCEPTED_NOTIFICATION' ||
+            data.message === 'ADMIN_NEW_SIGN_UP_APPROVAL_REQUEST_NOTIFICATION')
         ) {
           await fetchNotificationById(data.notification_id)
         }
diff --git a/frontend/app/src/components/Notifications/AdminNewSignUpApprovalRequestNotificationComponent.vue b/frontend/app/src/components/Notifications/AdminNewSignUpApprovalRequestNotificationComponent.vue
new file mode 100644
index 000000000..790b75bb8
--- /dev/null
+++ b/frontend/app/src/components/Notifications/AdminNewSignUpApprovalRequestNotificationComponent.vue
@@ -0,0 +1,50 @@
+<template>
+  <router-link
+    class="dropdown-item link-body-emphasis text-wrap"
+    :to="{ name: 'settings' }"
+  >
+    <span
+      ><b>{{ $t('adminNewSignUpApprovalRequestNotificationComponent.title') }}</b></span
+    >
+    <br />
+    <span class="fw-lighter">
+      {{ notification.options['user_name'] }} - @{{ notification.options['user_username']
+      }}{{ $t('adminNewSignUpApprovalRequestNotificationComponent.subTitle') }}
+    </span>
+  </router-link>
+</template>
+
+<script setup>
+import { computed, watch } from 'vue'
+// Importing the i18n
+import { useI18n } from 'vue-i18n'
+
+import { notifications } from '@/services/notificationsService'
+
+const { t } = useI18n()
+const emit = defineEmits(['notificationRead'])
+const props = defineProps({
+  notification: {
+    type: Object,
+    required: true
+  },
+  showDropdown: {
+    type: Boolean,
+    required: true
+  }
+})
+
+const dropdownState = computed(() => {
+  return props.showDropdown
+})
+
+function markNotificationAsRead() {
+  if (props.notification.read === false && props.showDropdown === true) {
+    notifications.markNotificationAsRead(props.notification.id)
+    emit('notificationRead', props.notification.id)
+  }
+}
+
+// Watch the page number variable.
+watch(dropdownState, markNotificationAsRead, { immediate: false })
+</script>
diff --git a/frontend/app/src/i18n/ca/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json b/frontend/app/src/i18n/ca/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
new file mode 100644
index 000000000..5a675a94b
--- /dev/null
+++ b/frontend/app/src/i18n/ca/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
@@ -0,0 +1,4 @@
+{
+  "title": "New sign-up request",
+  "subTitle": " has requested to sign-up"
+}
\ No newline at end of file
diff --git a/frontend/app/src/i18n/de/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json b/frontend/app/src/i18n/de/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
new file mode 100644
index 000000000..5a675a94b
--- /dev/null
+++ b/frontend/app/src/i18n/de/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
@@ -0,0 +1,4 @@
+{
+  "title": "New sign-up request",
+  "subTitle": " has requested to sign-up"
+}
\ No newline at end of file
diff --git a/frontend/app/src/i18n/es/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json b/frontend/app/src/i18n/es/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
new file mode 100644
index 000000000..5a675a94b
--- /dev/null
+++ b/frontend/app/src/i18n/es/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
@@ -0,0 +1,4 @@
+{
+  "title": "New sign-up request",
+  "subTitle": " has requested to sign-up"
+}
\ No newline at end of file
diff --git a/frontend/app/src/i18n/fr/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json b/frontend/app/src/i18n/fr/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
new file mode 100644
index 000000000..5a675a94b
--- /dev/null
+++ b/frontend/app/src/i18n/fr/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
@@ -0,0 +1,4 @@
+{
+  "title": "New sign-up request",
+  "subTitle": " has requested to sign-up"
+}
\ No newline at end of file
diff --git a/frontend/app/src/i18n/index.js b/frontend/app/src/i18n/index.js
index 6be608e6a..91450baf0 100644
--- a/frontend/app/src/i18n/index.js
+++ b/frontend/app/src/i18n/index.js
@@ -40,6 +40,7 @@ const componentPaths = {
   navbarBottomMobileComponent: 'components/navbar/navbarBottomMobileComponent.json',
   navbarComponent: 'components/navbar/navbarComponent.json',
   // Notifications components
+  adminNewSignUpApprovalRequestNotificationComponent: 'components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json',
   navbarNotificationsComponent: 'components/notifications/navbarNotificationsComponent.json',
   newAcceptedRequestNotificationComponent:
     'components/notifications/newAcceptedRequestNotificationComponent.json',
diff --git a/frontend/app/src/i18n/nl/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json b/frontend/app/src/i18n/nl/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
new file mode 100644
index 000000000..5a675a94b
--- /dev/null
+++ b/frontend/app/src/i18n/nl/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
@@ -0,0 +1,4 @@
+{
+  "title": "New sign-up request",
+  "subTitle": " has requested to sign-up"
+}
\ No newline at end of file
diff --git a/frontend/app/src/i18n/pt/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json b/frontend/app/src/i18n/pt/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
new file mode 100644
index 000000000..5a675a94b
--- /dev/null
+++ b/frontend/app/src/i18n/pt/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
@@ -0,0 +1,4 @@
+{
+  "title": "New sign-up request",
+  "subTitle": " has requested to sign-up"
+}
\ No newline at end of file
diff --git a/frontend/app/src/i18n/us/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json b/frontend/app/src/i18n/us/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
new file mode 100644
index 000000000..5a675a94b
--- /dev/null
+++ b/frontend/app/src/i18n/us/components/notifications/adminNewSignUpApprovalRequestNotificationComponent.json
@@ -0,0 +1,4 @@
+{
+  "title": "New sign-up request",
+  "subTitle": " has requested to sign-up"
+}
\ No newline at end of file