diff --git a/cinder/volume/drivers/coho.py b/cinder/volume/drivers/coho.py
index 99dcd91bf90..837079c33cf 100644
--- a/cinder/volume/drivers/coho.py
+++ b/cinder/volume/drivers/coho.py
@@ -334,6 +334,9 @@ class CohoDriver(nfs.NfsDriver):
     # ThirdPartySystems wiki page name
     CI_WIKI_NAME = "Coho_Data_CI"
 
+    # TODO(smcginnis) Remove driver in Queens if CI issues not fixed
+    SUPPORTED = False
+
     def __init__(self, *args, **kwargs):
         super(CohoDriver, self).__init__(*args, **kwargs)
         self.configuration.append_config_values(coho_opts)
diff --git a/releasenotes/notes/mark-coho-unsupported-989db9d88ed7fff8.yaml b/releasenotes/notes/mark-coho-unsupported-989db9d88ed7fff8.yaml
new file mode 100644
index 00000000000..a151b1aa1f6
--- /dev/null
+++ b/releasenotes/notes/mark-coho-unsupported-989db9d88ed7fff8.yaml
@@ -0,0 +1,14 @@
+---
+upgrade:
+  - |
+    The Coho driver has been marked as unsupported and is now
+    deprecated. ``enable_unsupported_driver`` will need to be set
+    to ``True`` in the driver's section in cinder.conf to continue
+    to use it.
+deprecations:
+  - |
+    The Coho driver has been marked as unsupported and is now
+    deprecated. ``enable_unsupported_driver`` will need to be set
+    to ``True`` in the driver's section in cinder.conf to continue
+    to use it. If its support status does not change, they will be
+    removed in the Queens development cycle.