diff --git a/django/contrib/admin/helpers.py b/django/contrib/admin/helpers.py
index 0c0b3a4e345..83719f4346e 100644
--- a/django/contrib/admin/helpers.py
+++ b/django/contrib/admin/helpers.py
@@ -187,7 +187,7 @@ class AdminReadonlyField:
         if not self.is_first:
             attrs["class"] = "inline"
         label = self.field['label']
-        return format_html('<label{}>{}:</label>', flatatt(attrs), capfirst(label))
+        return format_html('<label{}>{}{}</label>', flatatt(attrs), capfirst(label), self.form.label_suffix)
 
     def contents(self):
         from django.contrib.admin.templatetags.admin_list import _boolean_icon
diff --git a/tests/admin_views/tests.py b/tests/admin_views/tests.py
index 0cc16509ff7..3acbc3d7edc 100644
--- a/tests/admin_views/tests.py
+++ b/tests/admin_views/tests.py
@@ -4961,6 +4961,13 @@ class ReadonlyTest(AdminFieldExtractionMixin, TestCase):
         self.assertNotContains(response, "<a>evil</a>", status_code=200)
         self.assertContains(response, "&lt;a&gt;evil&lt;/a&gt;", status_code=200)
 
+    def test_label_suffix_translated(self):
+        pizza = Pizza.objects.create(name='Americano')
+        url = reverse('admin:admin_views_pizza_change', args=(pizza.pk,))
+        with self.settings(LANGUAGE_CODE='fr'):
+            response = self.client.get(url)
+        self.assertContains(response, '<label>Toppings\u00A0:</label>', html=True)
+
 
 @override_settings(ROOT_URLCONF='admin_views.urls')
 class LimitChoicesToInAdminTest(TestCase):