diff --git a/neutron/conf/agent/l3/config.py b/neutron/conf/agent/l3/config.py
index 4040e270c2c..3344ed756bc 100644
--- a/neutron/conf/agent/l3/config.py
+++ b/neutron/conf/agent/l3/config.py
@@ -42,6 +42,7 @@ OPTS = [
                 default=9697,
                 help=_("TCP Port used by Neutron metadata namespace proxy.")),
     cfg.IntOpt('send_arp_for_ha',
+               deprecated_for_removal=True,
                default=3,
                help=_("Send this many gratuitous ARPs for HA setup, if "
                       "less than or equal to 0, the feature is disabled")),
diff --git a/releasenotes/notes/deprecate-send_arp_for_ha-0281853632f58e8d.yaml b/releasenotes/notes/deprecate-send_arp_for_ha-0281853632f58e8d.yaml
new file mode 100644
index 00000000000..28b700d0966
--- /dev/null
+++ b/releasenotes/notes/deprecate-send_arp_for_ha-0281853632f58e8d.yaml
@@ -0,0 +1,5 @@
+---
+deprecations:
+  - L3 agent send_arp_for_ha configuration option is deprecated and will be
+    removed in Pike. The functionality will remain and the agent will send
+    three gratuitious ARPs whenever a new floating IP is configured.