diff --git a/docker/horizon/Dockerfile.j2 b/docker/horizon/Dockerfile.j2
index d28565aa01..5d81cece2c 100644
--- a/docker/horizon/Dockerfile.j2
+++ b/docker/horizon/Dockerfile.j2
@@ -40,7 +40,16 @@ ADD plugins-archive /
 ] %}
 
 {% set horizon_plugins_pip_packages = [
-    '/plugins/*'
+    '/plugins/blazar-dashboard*',
+    '/plugins/designate-dashboard*',
+    '/plugins/heat-dashboard*',
+    '/plugins/horizon-plugin-*',
+    '/plugins/ironic-ui*',
+    '/plugins/magnum-ui*',
+    '/plugins/manila-ui*',
+    '/plugins/masakari-dashboard*',
+    '/plugins/neutron-vpnaas-dashboard*',
+    '/plugins/octavia-dashboard*'
 ] %}
 
 COPY extend_start.sh /usr/local/bin/kolla_extend_start
diff --git a/releasenotes/notes/drop-horizon-plugins-f6f4d2e50b1adc3b.yaml b/releasenotes/notes/drop-horizon-plugins-f6f4d2e50b1adc3b.yaml
new file mode 100644
index 0000000000..ea8bc2eca5
--- /dev/null
+++ b/releasenotes/notes/drop-horizon-plugins-f6f4d2e50b1adc3b.yaml
@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    Drops Horizon plugins for projects absent in the Release Train. Removes:
+    freezer, mistral, murano, sahara, senlin, solum, tacker, trove, vitrage,
+    watcher, zun dashboards.