diff --git a/neutron/values.yaml b/neutron/values.yaml
index b8b21af918..1933e7783b 100644
--- a/neutron/values.yaml
+++ b/neutron/values.yaml
@@ -1385,6 +1385,10 @@ conf:
       master: true
       procname-prefix-spaced: "neutron-api:"
       route-user-agent: '^kube-probe.* donotlog:'
+      # start-time provides unix time at instance startup, used by ML2/OVN
+      # for OVN hash ring registers. See:
+      # https://docs.openstack.org/neutron/latest/admin/config-wsgi.html
+      start-time: "%t"
       thunder-lock: true
       worker-reload-mercy: 80
       wsgi-file: /var/lib/openstack/bin/neutron-api
diff --git a/releasenotes/notes/neutron-add-uwsgi-start-time-d73ba462e1157dd2.yaml b/releasenotes/notes/neutron-add-uwsgi-start-time-d73ba462e1157dd2.yaml
new file mode 100644
index 0000000000..ffd09d2dfb
--- /dev/null
+++ b/releasenotes/notes/neutron-add-uwsgi-start-time-d73ba462e1157dd2.yaml
@@ -0,0 +1,10 @@
+---
+neutron:
+  - |
+    Added uwsgi start-time configuration to neutron-api-uwsgi section. The
+    start-time parameter is set to "%t" (unix time at instance startup) and is
+    used by ML2/OVN for creating OVN hash ring registers per worker. This
+    configuration is mandatory for proper ML2/OVN operation. See the Neutron
+    documentation for more details:
+    https://docs.openstack.org/neutron/latest/admin/config-wsgi.html
+...