diff --git a/AUTHORS b/AUTHORS
index 3edfbecf2ab4..eeb2e7acbbc9 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -41,6 +41,7 @@ answer newbie questions, and generally made Django that much better:
     Akash Kumar Sen <akashkumarsen4@gmail.com>
     Akis Kesoglou <akiskesoglou@gmail.com>
     Aksel Ethem <aksel.ethem@gmail.com>
+    Akshat Sparsh <https://github.com/AKSHATSPAR>
     Akshesh Doshi <aksheshdoshi+django@gmail.com>
     alang@bright-green.com
     Alasdair Nicol <https://al.sdair.co.uk/>
diff --git a/django/contrib/admin/templatetags/admin_list.py b/django/contrib/admin/templatetags/admin_list.py
index aafbae9d90cb..211a2533b3cd 100644
--- a/django/contrib/admin/templatetags/admin_list.py
+++ b/django/contrib/admin/templatetags/admin_list.py
@@ -116,7 +116,9 @@ def result_headers(cl):
             # Set ordering for attr that is a property, if defined.
             if isinstance(attr, property) and hasattr(attr, "fget"):
                 admin_order_field = getattr(attr.fget, "admin_order_field", None)
-            if not admin_order_field and LOOKUP_SEP not in field_name:
+            if not admin_order_field and not (
+                LOOKUP_SEP in field_name and isinstance(attr, models.Field)
+            ):
                 is_field_sortable = False
 
         if not is_field_sortable:
diff --git a/tests/admin_changelist/tests.py b/tests/admin_changelist/tests.py
index f1d1abc0b0a5..f88982e10ba7 100644
--- a/tests/admin_changelist/tests.py
+++ b/tests/admin_changelist/tests.py
@@ -4,7 +4,7 @@
 from django.contrib import admin
 from django.contrib.admin.models import LogEntry
 from django.contrib.admin.options import IncorrectLookupParameters
-from django.contrib.admin.templatetags.admin_list import pagination
+from django.contrib.admin.templatetags.admin_list import pagination, result_headers
 from django.contrib.admin.tests import AdminSeleniumTestCase
 from django.contrib.admin.views.main import (
     ALL_VAR,
@@ -115,6 +115,20 @@ def test_repr(self):
         cl = m.get_changelist_instance(request)
         self.assertEqual(repr(cl), "<ChangeList: model=Child model_admin=ChildAdmin>")
 
+    def test_default_str_column_is_not_sortable(self):
+        GrandChild.objects.create(name="Grandchild")
+        m = admin.ModelAdmin(GrandChild, custom_site)
+        request = self._mocked_authenticated_request("/grandchild/", self.superuser)
+        cl = m.get_changelist_instance(request)
+        headers = list(result_headers(cl))
+        self.assertEqual(cl.list_display[1], "__str__")
+        self.assertIs(headers[1]["sortable"], False)
+        response = m.changelist_view(request)
+        self.assertContains(response, '<th scope="col" class="column-__str__">')
+        self.assertNotContains(
+            response, '<th scope="col" class="sortable column-__str__">'
+        )
+
     def test_specified_ordering_by_f_expression(self):
         class OrderedByFBandAdmin(admin.ModelAdmin):
             list_display = ["name", "genres", "nr_of_members"]
@@ -1726,6 +1740,13 @@ def test_list_display_related_field(self):
         response = m.changelist_view(request)
         self.assertContains(response, parent.name)
         self.assertContains(response, child.name)
+        self.assertContains(
+            response, '<th scope="col" class="sortable column-parent__name">'
+        )
+        self.assertContains(
+            response,
+            '<th scope="col" class="sortable column-parent__parent__name">',
+        )
 
     def test_list_display_related_field_null(self):
         GrandChild.objects.create(name="I am parentless", parent=None)
diff --git a/tests/admin_views/tests.py b/tests/admin_views/tests.py
index 92392c43e9cf..4ba2fa225549 100644
--- a/tests/admin_views/tests.py
+++ b/tests/admin_views/tests.py
@@ -4323,6 +4323,11 @@ def test_generic_content_object_in_list_display(self):
         FunkyTag.objects.create(content_object=self.pl3, name="hott")
         response = self.client.get(reverse("admin:admin_views_funkytag_changelist"))
         self.assertContains(response, "%s</td>" % self.pl3)
+        self.assertContains(response, '<th scope="col" class="column-content_object">')
+        self.assertNotContains(
+            response,
+            '<th scope="col" class="sortable column-content_object">',
+        )
 
 
 @override_settings(ROOT_URLCONF="admin_views.urls")