diff --git a/cinder/volume/drivers/qnap.py b/cinder/volume/drivers/qnap.py
index 096ca5793f6..d963d037527 100644
--- a/cinder/volume/drivers/qnap.py
+++ b/cinder/volume/drivers/qnap.py
@@ -88,6 +88,9 @@ class QnapISCSIDriver(san.SanISCSIDriver):
     # ThirdPartySystems wiki page
     CI_WIKI_NAME = "QNAP_CI"
 
+    # Remove if third party CI requirements are met
+    SUPPORTED = False
+
     VERSION = '1.2.005'
 
     TIME_INTERVAL = 3
diff --git a/doc/source/reference/support-matrix.ini b/doc/source/reference/support-matrix.ini
index 12d6b50089e..d44ee704e78 100644
--- a/doc/source/reference/support-matrix.ini
+++ b/doc/source/reference/support-matrix.ini
@@ -265,7 +265,7 @@ driver.nimble=complete
 driver.opene_joviandss=complete
 driver.prophetstor=missing
 driver.pure=complete
-driver.qnap=complete
+driver.qnap=missing
 driver.quobyte=complete
 driver.rbd=complete
 driver.rbd_iscsi=complete
diff --git a/releasenotes/notes/mark-unsupported-gnap-739f90232c60ab3e.yaml b/releasenotes/notes/mark-unsupported-gnap-739f90232c60ab3e.yaml
new file mode 100644
index 00000000000..372c1479416
--- /dev/null
+++ b/releasenotes/notes/mark-unsupported-gnap-739f90232c60ab3e.yaml
@@ -0,0 +1,11 @@
+---
+upgrade:
+  - |
+    The QNAP driver has been marked as unsupported and is now
+    deprecated. ``enable_unsupported_drivers`` will need to be set to
+    ``True`` in cinder.conf to continue to use it.
+deprecations:
+  - |
+    The QNAP driver has been marked as unsupported and is now
+    deprecated. ``enable_unsupported_drivers`` will need to be set to
+    ``True`` in cinder.conf to continue to use it.
\ No newline at end of file