diff --git a/django/contrib/admin/actions.py b/django/contrib/admin/actions.py
index 3a841bb6c8..7374d9cea8 100644
--- a/django/contrib/admin/actions.py
+++ b/django/contrib/admin/actions.py
@@ -63,17 +63,18 @@ def delete_selected(modeladmin, request, queryset):
     else:
         title = _("Are you sure?")
 
-    context = {
-        "title": title,
-        "objects_name": objects_name,
-        "deletable_objects": [deletable_objects],
-        "model_count": dict(model_count),
-        'queryset': queryset,
-        "perms_lacking": perms_needed,
-        "protected": protected,
-        "opts": opts,
-        'action_checkbox_name': helpers.ACTION_CHECKBOX_NAME,
-    }
+    context = dict(
+        modeladmin.admin_site.each_context(),
+        title=title,
+        objects_name=objects_name,
+        deletable_objects=[deletable_objects],
+        model_count=dict(model_count),
+        queryset=queryset,
+        perms_lacking=perms_needed,
+        protected=protected,
+        opts=opts,
+        action_checkbox_name=helpers.ACTION_CHECKBOX_NAME,
+    )
 
     # Display the confirmation page
     return TemplateResponse(request, modeladmin.delete_selected_confirmation_template or [
diff --git a/docs/releases/1.7.2.txt b/docs/releases/1.7.2.txt
index 62419be63e..1465db5def 100644
--- a/docs/releases/1.7.2.txt
+++ b/docs/releases/1.7.2.txt
@@ -80,3 +80,6 @@ Bugfixes
 
 * Fixed ``django.core.files.File.__repr__()`` when the file's ``name`` contains
   Unicode characters (:ticket:`23888`).
+
+* Added missing context to the admin's ``delete_selected`` view that prevented
+  custom site header, etc. from appearing (:ticket:`23898`).
diff --git a/tests/admin_views/tests.py b/tests/admin_views/tests.py
index d8758cd3ac..3d1c5eb7c8 100644
--- a/tests/admin_views/tests.py
+++ b/tests/admin_views/tests.py
@@ -838,6 +838,7 @@ class AdminCustomTemplateTests(AdminViewBasicTestCase):
             '_selected_action': group.id
         }
         response = self.client.post('/test_admin/%s/auth/group/' % (self.urlbit), post_data)
+        self.assertEqual(response.context['site_header'], 'Django administration')
         self.assertContains(response, 'bodyclass_consistency_check ')
 
     def test_filter_with_custom_template(self):