diff --git a/allianceauth/framework/static/allianceauth/framework/css/auth-framework.css b/allianceauth/framework/static/allianceauth/framework/css/auth-framework.css
index a7cf70b6..b866d344 100644
--- a/allianceauth/framework/static/allianceauth/framework/css/auth-framework.css
+++ b/allianceauth/framework/static/allianceauth/framework/css/auth-framework.css
@@ -47,6 +47,12 @@
 /* Side Navigation
 ------------------------------------------------------------------------------------- */
 @media all {
+    .sidemenu-total-notifications-badge {
+        position: absolute;
+        left: 28px;
+        font-size: 42.5% !important;
+    }
+
     #sidebar > div {
         width: 325px;
     }
diff --git a/allianceauth/static/allianceauth/js/sidebar-collapse.js b/allianceauth/static/allianceauth/js/sidebar-collapse.js
deleted file mode 100644
index 1dc76f80..00000000
--- a/allianceauth/static/allianceauth/js/sidebar-collapse.js
+++ /dev/null
@@ -1,13 +0,0 @@
-$(document).ready(() => {
-    'use strict';
-
-    const activeChildMenuItem = document.querySelector('ul#sidebar-menu ul.collapse a.active');
-
-    if (activeChildMenuItem) {
-        const activeChildMenuUl = activeChildMenuItem.closest('ul');
-        activeChildMenuUl.classList.add('show');
-
-        document.querySelectorAll(`[data-bs-target^="#${activeChildMenuUl.id}"]`)
-            .forEach(element => element.setAttribute('aria-expanded', true));
-    }
-});
diff --git a/allianceauth/static/allianceauth/js/sidebar.js b/allianceauth/static/allianceauth/js/sidebar.js
new file mode 100644
index 00000000..6d9303a3
--- /dev/null
+++ b/allianceauth/static/allianceauth/js/sidebar.js
@@ -0,0 +1,57 @@
+$(document).ready(() => {
+    'use strict';
+
+    /**
+     * Collect all badges in the sidebar menu that are not part of a collapsible submenu, and calculate the total notification count.
+     * Show a total notification badge in the navbar if there are any notifications.
+     */
+    const totalNotificationsBadge = () => {
+        const badges = [];
+        let notificationCount = 0;
+
+        document.querySelectorAll('#sidebar-menu .badge').forEach(b => {
+            const li = b.closest('li');
+
+            if (!li || !li.querySelector('ul.collapse')) {
+                badges.push(b);
+                notificationCount += parseInt(b.textContent);
+            }
+        });
+
+        if (badges.length > 0 && notificationCount > 0) {
+            const notificationBadge = document.createElement('span');
+
+            notificationBadge.classList.add(
+                'badge',
+                'text-bg-danger',
+                'align-self-center',
+                'sidemenu-notification-badge',
+                'sidemenu-total-notifications-badge'
+            );
+            notificationBadge.textContent = String(notificationCount);
+
+            document.querySelector('a.navbar-brand i.fa-solid').prepend(notificationBadge);
+        }
+    };
+
+    /**
+     * Find the active child menu item in the sidebar menu, if any, and ensure its parent submenu is expanded.
+     */
+    const expandChildMenu = () => {
+        const activeChildMenuItem = document.querySelector('ul#sidebar-menu ul.collapse a.active');
+
+        if (activeChildMenuItem) {
+            const activeChildMenuUl = activeChildMenuItem.closest('ul');
+            activeChildMenuUl.classList.add('show');
+
+            document.querySelectorAll(`[data-bs-target^="#${activeChildMenuUl.id}"]`)
+                .forEach(element => element.setAttribute('aria-expanded', 'true'));
+        }
+    };
+
+    // Execute functions on document ready
+    [
+        totalNotificationsBadge,
+        expandChildMenu
+    ].forEach(fn => fn());
+});
diff --git a/allianceauth/templates/bundles/auth-sidebar-collapse-js.html b/allianceauth/templates/bundles/auth-sidebar-collapse-js.html
index 0840249a..1a2c7665 100644
--- a/allianceauth/templates/bundles/auth-sidebar-collapse-js.html
+++ b/allianceauth/templates/bundles/auth-sidebar-collapse-js.html
@@ -1,3 +1,3 @@
 {% load sri %}
 
-{% sri_static 'allianceauth/js/sidebar-collapse.js' %}
+{% sri_static 'allianceauth/js/sidebar.js' %}