diff --git a/doc/source/reference/compute/zun-guide.rst b/doc/source/reference/compute/zun-guide.rst
index a2dee978d66aca7610d059c92b6624f15b04b17c..357ce222516795829ba1d2353336b014775b21fe 100644
--- a/doc/source/reference/compute/zun-guide.rst
+++ b/doc/source/reference/compute/zun-guide.rst
@@ -33,6 +33,10 @@ to cap docker by setting the following variables in globals.yml.
    docker_apt_package_pin: "5:20.*"
    docker_yum_package_pin: "20.*"
 
+Debian Bookworm is not recommended as a host OS for Zun.
+It does not support a version of Docker with the deprecated option.
+Compatibility with Zun is not tested in CI.
+
 Docker reconfiguration requires rebootstrapping before deploy.
 Make sure you understand the consequences of restarting Docker.
 Please see :ref:`rebootstrapping` for details.
diff --git a/releasenotes/notes/zun-drop-bullseye-3259e0bb8995d3ad.yaml b/releasenotes/notes/zun-drop-bullseye-3259e0bb8995d3ad.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..d0b69ae92b671a87c24baee5ec652150e1f5df41
--- /dev/null
+++ b/releasenotes/notes/zun-drop-bullseye-3259e0bb8995d3ad.yaml
@@ -0,0 +1,7 @@
+---
+upgrade:
+  - |
+    Zun is currently incompatible with Debian Bookworm. This is because Zun
+    currently has a hard dependency on a deprecated Docker feature. Operators
+    upgrading from Bullseye are strongly encouraged to disable Zun first.
+    While workarounds may be possible, none are currently tested in CI.
diff --git a/zuul.d/jobs.yaml b/zuul.d/jobs.yaml
index 8539117f14b3b217c4a46cde6408c88a6479bc25..c5063f0f7877ba17cc8c3f003d97fdcd18cd1a8b 100644
--- a/zuul.d/jobs.yaml
+++ b/zuul.d/jobs.yaml
@@ -212,13 +212,6 @@
     vars:
       base_distro: rocky
 
-- job:
-    name: kolla-ansible-debian-zun
-    parent: kolla-ansible-zun-base
-    nodeset: kolla-ansible-debian-bookworm-multi
-    vars:
-      base_distro: debian
-
 - job:
     name: kolla-ansible-ubuntu-zun
     parent: kolla-ansible-zun-base
diff --git a/zuul.d/project.yaml b/zuul.d/project.yaml
index e3ac918d7ac1e571d9385f6e1a5ae20d0050fe98..2cc7c0f0ba643b9aeefa5c35eb505807e6aed3ad 100644
--- a/zuul.d/project.yaml
+++ b/zuul.d/project.yaml
@@ -23,7 +23,6 @@
         - kolla-ansible-rocky9-bifrost
         - kolla-ansible-ubuntu-bifrost
         - kolla-ansible-rocky9-zun
-        - kolla-ansible-debian-zun
         - kolla-ansible-ubuntu-zun
         - kolla-ansible-rocky9-swift
         - kolla-ansible-ubuntu-swift