diff --git a/defaults/main.yml b/defaults/main.yml
index 9490a90e..c2decfdb 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -183,7 +183,6 @@ cinder_iscsi_num_targets: 100
 cinder_iscsi_port: 3260
 
 ## Cinder RPC
-cinder_rpc_backend: rabbit
 cinder_rpc_executor_thread_pool_size: 64
 cinder_rpc_response_timeout: 60
 
diff --git a/releasenotes/notes/remove_rpc_backend-7123da9fe3419215.yaml b/releasenotes/notes/remove_rpc_backend-7123da9fe3419215.yaml
new file mode 100644
index 00000000..3be3c202
--- /dev/null
+++ b/releasenotes/notes/remove_rpc_backend-7123da9fe3419215.yaml
@@ -0,0 +1,5 @@
+---
+deprecations:
+  - |
+    Remove ``cinder_rpc_backend`` option due to deprecation of
+    rpc_backend option in oslo.messaging.
diff --git a/templates/cinder.conf.j2 b/templates/cinder.conf.j2
index 4f68a30f..ee51731c 100644
--- a/templates/cinder.conf.j2
+++ b/templates/cinder.conf.j2
@@ -46,7 +46,6 @@ backup_ceph_pool = {{ cinder_service_backup_ceph_pool }}
 {% endif %}
 
 ## RabbitMQ RPC
-rpc_backend = {{ cinder_rpc_backend }}
 executor_thread_pool_size = {{ cinder_rpc_executor_thread_pool_size }}
 rpc_response_timeout = {{ cinder_rpc_response_timeout }}