diff --git a/manila/share/drivers/netapp/dataontap/client/client_cmode.py b/manila/share/drivers/netapp/dataontap/client/client_cmode.py
index 7736fcdf8b..dd69cf0924 100644
--- a/manila/share/drivers/netapp/dataontap/client/client_cmode.py
+++ b/manila/share/drivers/netapp/dataontap/client/client_cmode.py
@@ -1389,6 +1389,10 @@ class NetAppCmodeClient(client_base.NetAppBaseClient):
             'cifs-server': cifs_server,
             'domain': security_service['domain'],
         }
+
+        if security_service['ou'] is not None:
+            api_args['organizational-unit'] = security_service['ou']
+
         try:
             LOG.debug("Trying to setup CIFS server with data: %s", api_args)
             self.send_request('cifs-server-create', api_args)
diff --git a/manila/tests/share/drivers/netapp/dataontap/client/fakes.py b/manila/tests/share/drivers/netapp/dataontap/client/fakes.py
index 1afe6888f4..baa7a7a0ec 100644
--- a/manila/tests/share/drivers/netapp/dataontap/client/fakes.py
+++ b/manila/tests/share/drivers/netapp/dataontap/client/fakes.py
@@ -418,6 +418,7 @@ CIFS_SECURITY_SERVICE = {
     'type': 'active_directory',
     'password': 'fake_password',
     'user': 'fake_user',
+    'ou': 'fake_ou',
     'domain': 'fake_domain',
     'dns_ip': 'fake_dns_ip',
 }
diff --git a/manila/tests/share/drivers/netapp/dataontap/client/test_client_cmode.py b/manila/tests/share/drivers/netapp/dataontap/client/test_client_cmode.py
index 6405c42a4f..bb07d6b135 100644
--- a/manila/tests/share/drivers/netapp/dataontap/client/test_client_cmode.py
+++ b/manila/tests/share/drivers/netapp/dataontap/client/test_client_cmode.py
@@ -2441,6 +2441,7 @@ class NetAppClientCmodeTestCase(test.TestCase):
             'admin-password': fake.CIFS_SECURITY_SERVICE['password'],
             'force-account-overwrite': 'true',
             'cifs-server': cifs_server,
+            'organizational-unit': fake.CIFS_SECURITY_SERVICE['ou'],
             'domain': fake.CIFS_SECURITY_SERVICE['domain'],
         }
 
diff --git a/releasenotes/notes/netapp-cdot-use-security-service-ou-4dc5835c9e00ad9d.yaml b/releasenotes/notes/netapp-cdot-use-security-service-ou-4dc5835c9e00ad9d.yaml
new file mode 100644
index 0000000000..72630b6518
--- /dev/null
+++ b/releasenotes/notes/netapp-cdot-use-security-service-ou-4dc5835c9e00ad9d.yaml
@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    The NetApp cDOT driver uses the ou field from security services to
+    set the organizational unit of a vserver's active directory
+    configuration. This is done at CIFS server creation.