diff --git a/docs/en_US/keyboard_shortcuts.rst b/docs/en_US/keyboard_shortcuts.rst
index 5f766637865..0121624f7dd 100644
--- a/docs/en_US/keyboard_shortcuts.rst
+++ b/docs/en_US/keyboard_shortcuts.rst
@@ -22,6 +22,8 @@ When using main browser window, the following keyboard shortcuts are available:
    +----------------------------+--------------------+------------------------------------+
    | Shift + Alt + b            | Shift + Option + b | Object explorer                    |
    +----------------------------+--------------------+------------------------------------+
+   | Ctrl + Alt + b             | Ctrl + Option + b  | Toggle Object Explorer             |
+   +----------------------------+--------------------+------------------------------------+
    | Shift + Alt + n            | Shift + Option + n | Create object                      |
    +----------------------------+--------------------+------------------------------------+
    | Shift + Alt + d            | Shift + Option + d | Delete object                      |
diff --git a/web/pgadmin/browser/register_browser_preferences.py b/web/pgadmin/browser/register_browser_preferences.py
index d2fe51dc5fa..79da8ed5123 100644
--- a/web/pgadmin/browser/register_browser_preferences.py
+++ b/web/pgadmin/browser/register_browser_preferences.py
@@ -163,6 +163,21 @@ def register_browser_preferences(self):
         fields=fields
     )
 
+    self.preference.register(
+        'keyboard_shortcuts',
+        'toggle_object_explorer',
+        gettext('Toggle Object Explorer'),
+        'keyboardshortcut',
+        {
+            'alt': True,
+            'shift': False,
+            'control': True,
+            'key': {'key_code': 66, 'char': 'b'}
+        },
+        category_label=PREF_LABEL_KEYBOARD_SHORTCUTS,
+        fields=fields
+    )
+
     self.preference.register(
         'keyboard_shortcuts',
         'tabbed_panel_backward',
diff --git a/web/pgadmin/browser/static/js/constants.js b/web/pgadmin/browser/static/js/constants.js
index 8ad64a2089d..e1ed4cbde3c 100644
--- a/web/pgadmin/browser/static/js/constants.js
+++ b/web/pgadmin/browser/static/js/constants.js
@@ -148,3 +148,7 @@ export const AllPermissionTypes = {
 // Fired on pgAdmin.Browser.Events when code outside React, e.g. the keyboard
 // shortcut that focuses the tree, needs the Object Explorer on screen.
 export const SHOW_OBJECT_EXPLORER_EVENT = 'pgadmin:object-explorer:show';
+
+// Fired on pgAdmin.Browser.Events to collapse or restore the Object Explorer,
+// the same thing clicking the current workspace icon does.
+export const TOGGLE_OBJECT_EXPLORER_EVENT = 'pgadmin:object-explorer:toggle';
diff --git a/web/pgadmin/browser/static/js/keyboard.js b/web/pgadmin/browser/static/js/keyboard.js
index 662b8dd0239..e9779329903 100644
--- a/web/pgadmin/browser/static/js/keyboard.js
+++ b/web/pgadmin/browser/static/js/keyboard.js
@@ -14,7 +14,8 @@ import * as commonUtils from '../../../static/js/utils';
 import gettext from 'sources/gettext';
 import pgWindow from 'sources/window';
 import usePreferences from '../../../preferences/static/js/store';
-import { SHOW_OBJECT_EXPLORER_EVENT } from './constants';
+import { SHOW_OBJECT_EXPLORER_EVENT, TOGGLE_OBJECT_EXPLORER_EVENT }
+  from './constants';
 
 
 const pgBrowser = pgAdmin.Browser = pgAdmin.Browser || {};
@@ -41,6 +42,7 @@ _.extend(pgBrowser.keyboardNavigation, {
           ...(prefStore.getPreferences('browser', 'main_menu_tools')?.value) && {'tools_shortcut': commonUtils.parseShortcutValue(prefStore.getPreferences('browser', 'main_menu_tools')?.value)},
           ...(prefStore.getPreferences('browser', 'main_menu_help')?.value) && {'help_shortcut': commonUtils.parseShortcutValue(prefStore.getPreferences('browser', 'main_menu_help')?.value)},
           'left_tree_shortcut': commonUtils.parseShortcutValue(prefStore.getPreferences('browser', 'browser_tree')?.value),
+          'toggle_object_explorer': commonUtils.parseShortcutValue(prefStore.getPreferences('browser', 'toggle_object_explorer')?.value),
           'tabbed_panel_backward': commonUtils.parseShortcutValue(prefStore.getPreferences('browser', 'tabbed_panel_backward')?.value),
           'tabbed_panel_forward': commonUtils.parseShortcutValue(prefStore.getPreferences('browser', 'tabbed_panel_forward')?.value),
           'sub_menu_query_tool': commonUtils.parseShortcutValue(prefStore.getPreferences('browser', 'sub_menu_query_tool')?.value),
@@ -64,6 +66,7 @@ _.extend(pgBrowser.keyboardNavigation, {
           }}, // Main menu
           'bindRightPanel': {'shortcuts': [this.keyboardShortcut.tabbed_panel_backward, this.keyboardShortcut.tabbed_panel_forward, this.keyboardShortcut.close_tab_panel]}, // Main window panels
           'bindLeftTree': {'shortcuts': this.keyboardShortcut.left_tree_shortcut}, // Main menu,
+          'bindToggleObjectExplorer': {'shortcuts': this.keyboardShortcut.toggle_object_explorer}, // Collapse/restore the Object Explorer
           'bindSubMenuQueryTool': {'shortcuts': this.keyboardShortcut.sub_menu_query_tool}, // Sub menu - Open Query Tool,
           'bindSubMenuViewData': {'shortcuts': this.keyboardShortcut.sub_menu_view_data}, // Sub menu - Open View Data,
           'bindSubMenuSearchObjects': {'shortcuts': this.keyboardShortcut.sub_menu_search_objects}, // Sub menu - Open search objects,
@@ -213,6 +216,10 @@ _.extend(pgBrowser.keyboardNavigation, {
       tree.t.select(tree.i);
     }, 0);
   },
+  bindToggleObjectExplorer: function() {
+    // The provider owns the visibility state; it listens for this.
+    pgAdmin.Browser.Events.trigger(TOGGLE_OBJECT_EXPLORER_EVENT);
+  },
   bindSubMenuQueryTool: function() {
     const tree = this.getTreeDetails();
 
diff --git a/web/pgadmin/misc/workspaces/static/js/WorkspaceProvider.jsx b/web/pgadmin/misc/workspaces/static/js/WorkspaceProvider.jsx
index 548b89eb497..c29e76a04e7 100644
--- a/web/pgadmin/misc/workspaces/static/js/WorkspaceProvider.jsx
+++ b/web/pgadmin/misc/workspaces/static/js/WorkspaceProvider.jsx
@@ -9,7 +9,8 @@
 
 import React, { useCallback, useContext, useEffect, useMemo, useRef, useState } from 'react';
 import PropTypes from 'prop-types';
-import { BROWSER_PANELS, SHOW_OBJECT_EXPLORER_EVENT, WORKSPACES }
+import { BROWSER_PANELS, SHOW_OBJECT_EXPLORER_EVENT,
+  TOGGLE_OBJECT_EXPLORER_EVENT, WORKSPACES }
   from '../../../../browser/static/js/constants';
 import { usePgAdmin } from '../../../../static/js/PgAdminProvider';
 import usePreferences from '../../../../preferences/static/js/store';
@@ -171,6 +172,15 @@ export function WorkspaceProvider({children}) {
       SHOW_OBJECT_EXPLORER_EVENT, ()=>setObjectExplorerVisible(true));
   }, [pgAdmin, setObjectExplorerVisible]);
 
+  useEffect(()=>{
+    // Classic layout has no workspace toolbar and always shows the Object
+    // Explorer, so the shortcut has nothing to collapse there.
+    if(isClassic) return;
+
+    return pgAdmin.Browser.Events.registerListener(
+      TOGGLE_OBJECT_EXPLORER_EVENT, toggleObjectExplorer);
+  }, [pgAdmin, isClassic, toggleObjectExplorer]);
+
   const value = useMemo(()=>({
     config: config,
     currentWorkspace: currentWorkspace,
diff --git a/web/regression/javascript/browser/keyboard_toggle_object_explorer_spec.js b/web/regression/javascript/browser/keyboard_toggle_object_explorer_spec.js
new file mode 100644
index 00000000000..bb41915add0
--- /dev/null
+++ b/web/regression/javascript/browser/keyboard_toggle_object_explorer_spec.js
@@ -0,0 +1,40 @@
+/////////////////////////////////////////////////////////////
+//
+// pgAdmin 4 - PostgreSQL Tools
+//
+// Copyright (C) 2013 - 2026, The pgAdmin Development Team
+// This software is released under the PostgreSQL Licence
+//
+//////////////////////////////////////////////////////////////
+
+// keyboard.js reaches pgadmin.js by relative path, which skips the
+// sources/pgadmin alias that maps to the fake, so point it there explicitly.
+jest.mock('../../../pgadmin/static/js/pgadmin', () =>
+  jest.requireActual('../fake_pgadmin'));
+
+import pgAdmin from 'sources/pgadmin';
+import { TOGGLE_OBJECT_EXPLORER_EVENT } from
+  '../../../pgadmin/browser/static/js/constants';
+import '../../../pgadmin/browser/static/js/keyboard';
+
+/* The shortcut does not own the visibility state, the workspace provider
+ * does, so all it has to do is say what the user asked for. */
+describe('keyboardNavigation.bindToggleObjectExplorer', () => {
+  it('asks the workspace provider to toggle the Object Explorer',
+    async () => {
+      const listener = jest.fn();
+      const dereg = pgAdmin.Browser.Events.registerListener(
+        TOGGLE_OBJECT_EXPLORER_EVENT, listener);
+
+      try {
+        pgAdmin.Browser.keyboardNavigation.bindToggleObjectExplorer();
+        // EventBus dispatches through a couple of microtasks, so wait for a
+        // macrotask to be sure they have all run.
+        await new Promise((resolve) => setTimeout(resolve, 0));
+
+        expect(listener).toHaveBeenCalled();
+      } finally {
+        dereg();
+      }
+    });
+});
diff --git a/web/regression/javascript/workspaces/WorkspaceProvider.spec.jsx b/web/regression/javascript/workspaces/WorkspaceProvider.spec.jsx
index 7e38750fca8..bf3f55a7b94 100644
--- a/web/regression/javascript/workspaces/WorkspaceProvider.spec.jsx
+++ b/web/regression/javascript/workspaces/WorkspaceProvider.spec.jsx
@@ -9,7 +9,7 @@
 
 import { act, render } from '@testing-library/react';
 
-import { SHOW_OBJECT_EXPLORER_EVENT } from
+import { SHOW_OBJECT_EXPLORER_EVENT, TOGGLE_OBJECT_EXPLORER_EVENT } from
   '../../../pgadmin/browser/static/js/constants';
 import { WorkspaceProvider, useWorkspace } from
   '../../../pgadmin/misc/workspaces/static/js/WorkspaceProvider';
@@ -19,6 +19,18 @@ import getApiInstance from '../../../pgadmin/static/js/api_instance';
 
 jest.mock('../../../pgadmin/static/js/api_instance');
 
+// The workspace layout, since that is the only layout with a workspace
+// toolbar and therefore the only one where the Object Explorer can be
+// collapsed at all.
+jest.mock('../../../pgadmin/preferences/static/js/store', () => {
+  const store = () => ({
+    getPreferencesForModule: () => ({layout: 'workspace'}),
+  });
+  store.subscribe = () => () => {/* nothing to unsubscribe */};
+  store.getState = () => ({});
+  return {__esModule: true, default: store};
+});
+
 // The Object Explorer can be collapsed, and that choice is persisted, so the
 // visibility state has to survive a reload and the writes must not be able to
 // land out of order (#9631).
@@ -97,6 +109,21 @@ describe('WorkspaceProvider Object Explorer visibility', () => {
     expect(values).toEqual(['false', 'true']);
   });
 
+  it('toggles when asked to by code outside React', async () => {
+    await renderProvider();
+    expect(workspace.isObjectExplorerVisible).toBe(true);
+
+    await act(async () => {
+      pgAdmin.Browser.Events.trigger(TOGGLE_OBJECT_EXPLORER_EVENT);
+    });
+    expect(workspace.isObjectExplorerVisible).toBe(false);
+
+    await act(async () => {
+      pgAdmin.Browser.Events.trigger(TOGGLE_OBJECT_EXPLORER_EVENT);
+    });
+    expect(workspace.isObjectExplorerVisible).toBe(true);
+  });
+
   it('shows the panel when asked to by code outside React', async () => {
     pgAdmin.Browser.utils.layout['Browser/ObjectExplorerVisible'] = 'false';
     await renderProvider();