diff --git a/framework/core/js/src/forum/components/NotificationList.js b/framework/core/js/src/forum/components/NotificationList.js
index 8c63fc328..abfd52423 100644
--- a/framework/core/js/src/forum/components/NotificationList.js
+++ b/framework/core/js/src/forum/components/NotificationList.js
@@ -6,6 +6,7 @@ import Link from '../../common/components/Link';
 import LoadingIndicator from '../../common/components/LoadingIndicator';
 import Discussion from '../../common/models/Discussion';
 import ItemList from '../../common/utils/ItemList';
+import Tooltip from '../../common/components/Tooltip';
 
 /**
  * The `NotificationList` component displays a list of the logged-in user's
@@ -34,15 +35,36 @@ export default class NotificationList extends Component {
 
     items.add(
       'mark_all_as_read',
-      <Button
-        className="Button Button--link"
-        icon="fas fa-check"
-        title={app.translator.trans('core.forum.notifications.mark_all_as_read_tooltip')}
-        onclick={state.markAllAsRead.bind(state)}
-      />,
+      <Tooltip text={app.translator.trans('core.forum.notifications.mark_all_as_read_tooltip')}>
+        <Button
+          className="Button Button--link"
+          data-container=".NotificationList"
+          icon="fas fa-check"
+          title={app.translator.trans('core.forum.notifications.mark_all_as_read_tooltip')}
+          onclick={state.markAllAsRead.bind(state)}
+        />
+      </Tooltip>,
       70
     );
 
+    items.add(
+      'delete_all',
+      <Tooltip text={app.translator.trans('core.forum.notifications.delete_all_tooltip')}>
+        <Button
+          className="Button Button--link"
+          data-container=".NotificationList"
+          icon="fas fa-trash-alt"
+          title={app.translator.trans('core.forum.notifications.delete_all_tooltip')}
+          onclick={() => {
+            if (confirm(app.translator.trans('core.forum.notifications.delete_all_confirm'))) {
+              state.deleteAll.call(state);
+            }
+          }}
+        />
+      </Tooltip>,
+      50
+    );
+
     return items;
   }
 
diff --git a/framework/core/js/src/forum/states/NotificationListState.ts b/framework/core/js/src/forum/states/NotificationListState.ts
index 75bb07158..2b54c76a7 100644
--- a/framework/core/js/src/forum/states/NotificationListState.ts
+++ b/framework/core/js/src/forum/states/NotificationListState.ts
@@ -46,4 +46,20 @@ export default class NotificationListState extends PaginatedListState<Notificati
       method: 'POST',
     });
   }
+
+  /**
+   * Delete all of the notifications for this user.
+   */
+  deleteAll() {
+    if (this.pages.length === 0) return;
+
+    app.session.user?.pushAttributes({ unreadNotificationCount: 0 });
+
+    this.pages = [];
+
+    return app.request({
+      url: app.forum.attribute('apiUrl') + '/notifications',
+      method: 'DELETE',
+    });
+  }
 }
diff --git a/framework/core/less/forum/NotificationList.less b/framework/core/less/forum/NotificationList.less
index df09c00f2..e030e7f65 100644
--- a/framework/core/less/forum/NotificationList.less
+++ b/framework/core/less/forum/NotificationList.less
@@ -1,6 +1,10 @@
 .NotificationList {
   overflow: hidden;
 
+  .App-primaryControl > button:not(:last-of-type) {
+    margin-right: 4px;
+  }
+
   &-header {
     @media @tablet-up {
       padding: 12px 15px;
diff --git a/framework/core/locale/core.yml b/framework/core/locale/core.yml
index 010bb9cfb..3fcd8e14e 100644
--- a/framework/core/locale/core.yml
+++ b/framework/core/locale/core.yml
@@ -394,6 +394,8 @@ core:
 
     # These translations are used by the Notifications dropdown, a.k.a. "the bell".
     notifications:
+      delete_all_confirm: Are you sure you want to delete all notifications? This action is not reversable
+      delete_all_tooltip: Delete all notifications
       discussion_renamed_text: "{username} changed the title"
       empty_text: No Notifications
       mark_all_as_read_tooltip: => core.ref.mark_all_as_read
diff --git a/framework/core/src/Api/Controller/DeleteAllNotificationsController.php b/framework/core/src/Api/Controller/DeleteAllNotificationsController.php
new file mode 100644
index 000000000..7e5d3df76
--- /dev/null
+++ b/framework/core/src/Api/Controller/DeleteAllNotificationsController.php
@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of Flarum.
+ *
+ * For detailed copyright and license information, please view the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace Flarum\Api\Controller;
+
+use Flarum\Http\RequestUtil;
+use Flarum\Notification\Command\DeleteAllNotifications;
+use Illuminate\Contracts\Bus\Dispatcher;
+use Psr\Http\Message\ServerRequestInterface;
+
+class DeleteAllNotificationsController extends AbstractDeleteController
+{
+    /**
+     * @var Dispatcher
+     */
+    protected $bus;
+
+    /**
+     * @param Dispatcher $bus
+     */
+    public function __construct(Dispatcher $bus)
+    {
+        $this->bus = $bus;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function delete(ServerRequestInterface $request)
+    {
+        $this->bus->dispatch(
+            new DeleteAllNotifications(RequestUtil::getActor($request))
+        );
+    }
+}
diff --git a/framework/core/src/Api/routes.php b/framework/core/src/Api/routes.php
index 5863e4856..e21141107 100644
--- a/framework/core/src/Api/routes.php
+++ b/framework/core/src/Api/routes.php
@@ -122,6 +122,13 @@ return function (RouteCollection $map, RouteHandlerFactory $route) {
         $route->toController(Controller\UpdateNotificationController::class)
     );
 
+    // Delete all notifications for the current user.
+    $map->delete(
+        '/notifications',
+        'notifications.deleteAll',
+        $route->toController(Controller\DeleteAllNotificationsController::class)
+    );
+
     /*
     |--------------------------------------------------------------------------
     | Discussions
diff --git a/framework/core/src/Notification/Command/DeleteAllNotifications.php b/framework/core/src/Notification/Command/DeleteAllNotifications.php
new file mode 100644
index 000000000..934e60665
--- /dev/null
+++ b/framework/core/src/Notification/Command/DeleteAllNotifications.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of Flarum.
+ *
+ * For detailed copyright and license information, please view the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace Flarum\Notification\Command;
+
+use Flarum\User\User;
+
+class DeleteAllNotifications
+{
+    /**
+     * The user performing the action.
+     *
+     * @var User
+     */
+    public $actor;
+
+    /**
+     * @param User $actor The user performing the action.
+     */
+    public function __construct(User $actor)
+    {
+        $this->actor = $actor;
+    }
+}
diff --git a/framework/core/src/Notification/Command/DeleteAllNotificationsHandler.php b/framework/core/src/Notification/Command/DeleteAllNotificationsHandler.php
new file mode 100644
index 000000000..a8d321694
--- /dev/null
+++ b/framework/core/src/Notification/Command/DeleteAllNotificationsHandler.php
@@ -0,0 +1,54 @@
+<?php
+
+/*
+ * This file is part of Flarum.
+ *
+ * For detailed copyright and license information, please view the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace Flarum\Notification\Command;
+
+use Flarum\Notification\Event\DeletedAll;
+use Flarum\Notification\NotificationRepository;
+use Flarum\User\Exception\NotAuthenticatedException;
+use Illuminate\Contracts\Events\Dispatcher;
+use Illuminate\Support\Carbon;
+
+class DeleteAllNotificationsHandler
+{
+    /**
+     * @var NotificationRepository
+     */
+    protected $notifications;
+
+    /**
+     * @var Dispatcher
+     */
+    protected $events;
+
+    /**
+     * @param NotificationRepository $notifications
+     * @param Dispatcher $events
+     */
+    public function __construct(NotificationRepository $notifications, Dispatcher $events)
+    {
+        $this->notifications = $notifications;
+        $this->events = $events;
+    }
+
+    /**
+     * @param DeleteAllNotifications $command
+     * @throws NotAuthenticatedException
+     */
+    public function handle(DeleteAllNotifications $command)
+    {
+        $actor = $command->actor;
+
+        $actor->assertRegistered();
+
+        $this->notifications->deleteAll($actor);
+
+        $this->events->dispatch(new DeletedAll($actor, Carbon::now()));
+    }
+}
diff --git a/framework/core/src/Notification/Event/DeletedAll.php b/framework/core/src/Notification/Event/DeletedAll.php
new file mode 100644
index 000000000..8d202eb7c
--- /dev/null
+++ b/framework/core/src/Notification/Event/DeletedAll.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of Flarum.
+ *
+ * For detailed copyright and license information, please view the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace Flarum\Notification\Event;
+
+use DateTime;
+use Flarum\User\User;
+
+class DeletedAll
+{
+    /**
+     * @var User
+     */
+    public $actor;
+
+    /**
+     * @var DateTime
+     */
+    public $timestamp;
+
+    public function __construct(User $user, DateTime $timestamp)
+    {
+        $this->user = $user;
+        $this->timestamp = $timestamp;
+    }
+}
diff --git a/framework/core/src/Notification/NotificationRepository.php b/framework/core/src/Notification/NotificationRepository.php
index dcb7acbd8..7f6b29da1 100644
--- a/framework/core/src/Notification/NotificationRepository.php
+++ b/framework/core/src/Notification/NotificationRepository.php
@@ -54,4 +54,9 @@ class NotificationRepository
             ->whereNull('read_at')
             ->update(['read_at' => Carbon::now()]);
     }
+
+    public function deleteAll(User $user)
+    {
+        Notification::where('user_id', $user->id)->delete();
+    }
 }
diff --git a/framework/core/tests/integration/api/notifications/DeleteTest.php b/framework/core/tests/integration/api/notifications/DeleteTest.php
new file mode 100644
index 000000000..4d4c2976b
--- /dev/null
+++ b/framework/core/tests/integration/api/notifications/DeleteTest.php
@@ -0,0 +1,72 @@
+<?php
+
+/*
+ * This file is part of Flarum.
+ *
+ * For detailed copyright and license information, please view the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace Flarum\Tests\integration\api\notifications;
+
+use Carbon\Carbon;
+use Flarum\Testing\integration\RetrievesAuthorizedUsers;
+use Flarum\Testing\integration\TestCase;
+use Flarum\User\User;
+
+class DeleteTest extends TestCase
+{
+    use RetrievesAuthorizedUsers;
+
+    /**
+     * @inheritDoc
+     */
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->prepareDatabase([
+            'users' => [
+                $this->normalUser(),
+            ],
+            'discussions' => [
+                ['id' => 1, 'title' => 'Test Discussion', 'user_id' => 2, 'comment_count' => 1],
+                ['id' => 2, 'title' => 'Test Discussion', 'user_id' => 2, 'comment_count' => 1],
+                ['id' => 3, 'title' => 'Test Discussion', 'user_id' => 1, 'comment_count' => 1],
+                ['id' => 4, 'title' => 'Test Discussion', 'user_id' => 1, 'comment_count' => 1],
+            ],
+            'notifications' => [
+                ['id' => 1, 'user_id' => 1, 'type' => 'discussionRenamed', 'subject_id' => 1, 'from_user_id' => 2, 'read_at' => Carbon::now()],
+                ['id' => 2, 'user_id' => 1, 'type' => 'discussionRenamed', 'subject_id' => 2, 'from_user_id' => 2, 'read_at' => null],
+                ['id' => 3, 'user_id' => 2, 'type' => 'discussionRenamed', 'subject_id' => 3, 'from_user_id' => 1, 'read_at' => Carbon::now()],
+                ['id' => 4, 'user_id' => 2, 'type' => 'discussionRenamed', 'subject_id' => 4, 'from_user_id' => 1, 'read_at' => null],
+            ],
+        ]);
+    }
+
+    /**
+     * @dataProvider canDeleteAllNotifications
+     * @test
+     */
+    public function user_can_delete_all_notifications(int $authenticatedAs)
+    {
+        $this->app();
+
+        $this->assertEquals(2, User::query()->find($authenticatedAs)->notifications()->count());
+
+        $response = $this->send(
+            $this->request('DELETE', '/api/notifications', compact('authenticatedAs')),
+        );
+
+        $this->assertEquals(204, $response->getStatusCode());
+        $this->assertEquals(0, User::query()->find($authenticatedAs)->notifications()->count());
+    }
+
+    public function canDeleteAllNotifications(): array
+    {
+        return [
+            [1],
+            [2]
+        ];
+    }
+}