diff --git a/manifests/api.pp b/manifests/api.pp
index 3558f27e..dbf1056a 100644
--- a/manifests/api.pp
+++ b/manifests/api.pp
@@ -58,6 +58,11 @@
 #   (optional) Topics to use for oslo messaging notifications backend.
 #   Defaults to $facts['os_service_default']
 #
+# [*notification_retry*]
+#   (optional) The maximum number of attempts to re-sent a notification
+#   message, which failed to be delivered due to a recoverable error.
+#   Defaults to $facts['os_service_default'].
+#
 # [*rabbit_use_ssl*]
 #   (optional) Connect over SSL for RabbitMQ
 #   Defaults to $facts['os_service_default']
@@ -265,6 +270,7 @@ class barbican::api (
   $notification_transport_url                    = $facts['os_service_default'],
   $notification_driver                           = $facts['os_service_default'],
   $notification_topics                           = $facts['os_service_default'],
+  $notification_retry                            = $facts['os_service_default'],
   $rabbit_use_ssl                                = $facts['os_service_default'],
   $rabbit_heartbeat_timeout_threshold            = $facts['os_service_default'],
   $rabbit_heartbeat_rate                         = $facts['os_service_default'],
@@ -361,6 +367,7 @@ class barbican::api (
     driver        => $notification_driver,
     transport_url => $notification_transport_url,
     topics        => $notification_topics,
+    retry         => $notification_retry,
   }
 
   # queue options
diff --git a/releasenotes/notes/notification-retry-e92962f26c9b9c89.yaml b/releasenotes/notes/notification-retry-e92962f26c9b9c89.yaml
new file mode 100644
index 00000000..ecfb87ed
--- /dev/null
+++ b/releasenotes/notes/notification-retry-e92962f26c9b9c89.yaml
@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    The new ``barbican::api::notification_retry`` parameter has been added.
diff --git a/spec/classes/barbican_api_spec.rb b/spec/classes/barbican_api_spec.rb
index 22d09cfe..f96f65a8 100644
--- a/spec/classes/barbican_api_spec.rb
+++ b/spec/classes/barbican_api_spec.rb
@@ -31,6 +31,7 @@ describe 'barbican::api' do
         :notification_transport_url                    => '<SERVICE DEFAULT>',
         :notification_driver                           => '<SERVICE DEFAULT>',
         :notification_topics                           => '<SERVICE DEFAULT>',
+        :notification_retry                            => '<SERVICE DEFAULT>',
         :rabbit_use_ssl                                => '<SERVICE DEFAULT>',
         :rabbit_heartbeat_timeout_threshold            => '<SERVICE DEFAULT>',
         :rabbit_heartbeat_rate                         => '<SERVICE DEFAULT>',
@@ -82,6 +83,7 @@ describe 'barbican::api' do
         :notification_transport_url                    => 'rabbit://bugs:bugs_bunny@localhost:1234/rabbithost',
         :notification_driver                           => 'kombu',
         :notification_topics                           => 'notifications',
+        :notification_retry                            => 10,
         :rabbit_use_ssl                                => true,
         :rabbit_heartbeat_timeout_threshold            => '10',
         :rabbit_heartbeat_rate                         => '10',
@@ -169,7 +171,8 @@ describe 'barbican::api' do
           is_expected.to contain_oslo__messaging__notifications('barbican_config').with(
             :transport_url => param_hash[:notification_transport_url],
             :driver        => param_hash[:notification_driver],
-            :topics        => param_hash[:notification_topics]
+            :topics        => param_hash[:notification_topics],
+            :retry         => param_hash[:notification_retry],
           )
           is_expected.to contain_oslo__messaging__rabbit('barbican_config').with(
             :rabbit_use_ssl                  => param_hash[:rabbit_use_ssl],