diff --git a/django/contrib/admin/sites.py b/django/contrib/admin/sites.py
index e375bc608f..94d86026c4 100644
--- a/django/contrib/admin/sites.py
+++ b/django/contrib/admin/sites.py
@@ -354,6 +354,7 @@ class AdminSite(object):
                     info = (app_label, model._meta.module_name)
                     model_dict = {
                         'name': capfirst(model._meta.verbose_name_plural),
+                        'object_name': model._meta.object_name,
                         'perms': perms,
                     }
                     if perms.get('change', False):
@@ -371,6 +372,7 @@ class AdminSite(object):
                     else:
                         app_dict[app_label] = {
                             'name': app_label.title(),
+                            'app_label': app_label,
                             'app_url': reverse('admin:app_list', kwargs={'app_label': app_label}, current_app=self.name),
                             'has_module_perms': has_module_perms,
                             'models': [model_dict],
@@ -408,6 +410,7 @@ class AdminSite(object):
                         info = (app_label, model._meta.module_name)
                         model_dict = {
                             'name': capfirst(model._meta.verbose_name_plural),
+                            'object_name': model._meta.object_name,
                             'perms': perms,
                         }
                         if perms.get('change', False):
@@ -428,6 +431,7 @@ class AdminSite(object):
                             # information.
                             app_dict = {
                                 'name': app_label.title(),
+                                'app_label': app_label,
                                 'app_url': '',
                                 'has_module_perms': has_module_perms,
                                 'models': [model_dict],
diff --git a/django/contrib/admin/templates/admin/index.html b/django/contrib/admin/templates/admin/index.html
index 91ea0844b1..961e4823e0 100644
--- a/django/contrib/admin/templates/admin/index.html
+++ b/django/contrib/admin/templates/admin/index.html
@@ -14,7 +14,7 @@
 
 {% if app_list %}
     {% for app in app_list %}
-        <div class="module">
+        <div class="app-{{ app.app_label }} module">
         <table>
         <caption>
             <a href="{{ app.app_url }}" class="section" title="{% blocktrans with name=app.name %}Models in the {{ name }} application{% endblocktrans %}">
@@ -22,7 +22,7 @@
             </a>
         </caption>
         {% for model in app.models %}
-            <tr>
+            <tr class="model-{{ model.object_name|lower }}">
             {% if model.admin_url %}
                 <th scope="row"><a href="{{ model.admin_url }}">{{ model.name }}</a></th>
             {% else %}
diff --git a/tests/regressiontests/admin_views/tests.py b/tests/regressiontests/admin_views/tests.py
index 62f69f6d94..6c95e1b6f9 100644
--- a/tests/regressiontests/admin_views/tests.py
+++ b/tests/regressiontests/admin_views/tests.py
@@ -3391,7 +3391,11 @@ class CSSTest(TestCase):
     def tearDown(self):
         self.client.logout()
 
-    def test_css_classes(self):
+    def test_field_prefix_css_classes(self):
+        """
+        Ensure that fields have a CSS class name with a 'field-' prefix.
+        Refs #16371.
+        """
         response = self.client.get('/test_admin/admin/admin_views/post/add/')
 
         # The main form
@@ -3407,6 +3411,23 @@ class CSSTest(TestCase):
         self.assertContains(response, '<td class="field-url">')
         self.assertContains(response, '<td class="field-posted">')
 
+    def test_index_css_classes(self):
+        """
+        Ensure that CSS class names are used for each app and model on the
+        admin index pages.
+        Refs #17050.
+        """
+        # General index page
+        response = self.client.get("/test_admin/admin/")
+        self.assertContains(response, '<div class="app-admin_views module">')
+        self.assertContains(response, '<tr class="model-actor">')
+        self.assertContains(response, '<tr class="model-album">')
+
+        # App index page
+        response = self.client.get("/test_admin/admin/admin_views/")
+        self.assertContains(response, '<div class="app-admin_views module">')
+        self.assertContains(response, '<tr class="model-actor">')
+        self.assertContains(response, '<tr class="model-album">')
 
 try:
     import docutils