diff --git a/cinder/volume/drivers/synology/synology_iscsi.py b/cinder/volume/drivers/synology/synology_iscsi.py
index 7c6170b7e9f..c102d9a723d 100644
--- a/cinder/volume/drivers/synology/synology_iscsi.py
+++ b/cinder/volume/drivers/synology/synology_iscsi.py
@@ -34,6 +34,9 @@ class SynoISCSIDriver(driver.ISCSIDriver):
     CI_WIKI_NAME = 'Synology_DSM_CI'
     VERSION = '1.0.0'
 
+    # TODO(smcginnis) Remove driver in Queens if CI issues not addressed
+    SUPPORTED = False
+
     def __init__(self, *args, **kwargs):
         super(SynoISCSIDriver, self).__init__(*args, **kwargs)
 
diff --git a/releasenotes/notes/mark-synology-deprecated-134ba9764e14af67.yaml b/releasenotes/notes/mark-synology-deprecated-134ba9764e14af67.yaml
new file mode 100644
index 00000000000..2668f3a72f9
--- /dev/null
+++ b/releasenotes/notes/mark-synology-deprecated-134ba9764e14af67.yaml
@@ -0,0 +1,14 @@
+---
+upgrade:
+  - |
+    The Synology 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 Synology 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,
+    the driver will be removed in the Queens development cycle.