diff --git a/botocore/client.py b/botocore/client.py
index ee1500a1b8..6bfb538a12 100644
--- a/botocore/client.py
+++ b/botocore/client.py
@@ -11,6 +11,7 @@
 # ANY KIND, either express or implied. See the License for the specific
 # language governing permissions and limitations under the License.
 import logging
+import os
 import warnings
 
 from botocore import waiter, xform_name
@@ -609,13 +610,17 @@ def _create_endpoint(
         if endpoint_url is None:
             sslCommonName = resolved.get('sslCommonName')
             hostname = resolved.get('hostname')
-            if sslCommonName is not None:
+            disable = ensure_boolean(
+                os.environ.get('BOTO_EXPERIMENTAL__DISABLE_COMMONNAME', '')
+            )
+            if not disable and sslCommonName is not None:
                 warnings.warn(
                     f'The {service_name} client is currently using a '
                     f'deprecated endpoint: {sslCommonName}. In the next '
                     f'minor version this will be moved to {hostname}. '
                     'See https://github.com/boto/botocore/issues/2376 '
                     'for more details.',
+                    category=FutureWarning,
                 )
                 hostname = sslCommonName
             endpoint_url = self._make_url(
diff --git a/tests/unit/test_client.py b/tests/unit/test_client.py
index 071e1bf061..219433fe3a 100644
--- a/tests/unit/test_client.py
+++ b/tests/unit/test_client.py
@@ -1610,7 +1610,7 @@ def test_client_close_context_manager(self):
     def test_sslCommonName_warning(self):
         creator = self.create_client_creator()
         self.endpoint_data['sslCommonName'] = 'bar'
-        with self.assertWarns(UserWarning) as warning:
+        with self.assertWarns(FutureWarning) as warning:
             creator.create_client(
                 'myservice', 'us-west-2', credentials=self.credentials
             )