diff --git a/manifests/api.pp b/manifests/api.pp
index 6bfd5555..22dd24d2 100644
--- a/manifests/api.pp
+++ b/manifests/api.pp
@@ -94,6 +94,10 @@
 #   HTTPProxyToWSGI middleware.
 #   Defaults to $facts['os_service_default'].
 #
+# [*max_request_body_size*]
+#   (Optional) Set max request body size
+#   Defaults to $facts['os_service_default'].
+#
 # [*service_name*]
 #   (Optional) Name of the service that will be providing the server
 #   functionality of the designate API. If the value is 'httpd',
@@ -124,6 +128,7 @@ class designate::api (
   $enabled_extensions_admin     = $facts['os_service_default'],
   $quotas_verify_project_id     = $facts['os_service_default'],
   $enable_proxy_headers_parsing = $facts['os_service_default'],
+  $max_request_body_size        = $facts['os_service_default'],
   $service_name                 = $::designate::params::api_service_name,
 ) inherits designate {
 
@@ -156,7 +161,8 @@ class designate::api (
   }
 
   oslo::middleware { 'designate_config':
-    enable_proxy_headers_parsing => $enable_proxy_headers_parsing
+    enable_proxy_headers_parsing => $enable_proxy_headers_parsing,
+    max_request_body_size        => $max_request_body_size,
   }
 
   if $manage_service {
diff --git a/releasenotes/notes/max_request_body_size-7161406cb8b718b5.yaml b/releasenotes/notes/max_request_body_size-7161406cb8b718b5.yaml
new file mode 100644
index 00000000..88efed97
--- /dev/null
+++ b/releasenotes/notes/max_request_body_size-7161406cb8b718b5.yaml
@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    The new ``designate::api::max_request_body_size`` parameter has been added.
diff --git a/spec/classes/designate_api_spec.rb b/spec/classes/designate_api_spec.rb
index ad987f8b..bfcb4545 100644
--- a/spec/classes/designate_api_spec.rb
+++ b/spec/classes/designate_api_spec.rb
@@ -56,7 +56,8 @@ describe 'designate::api' do
         is_expected.to contain_designate_config('service:api/quotas_verify_project_id').with_value('<SERVICE DEFAULT>')
         is_expected.to_not contain_designate__keystone__authtoken('designate_config')
         is_expected.to contain_oslo__middleware('designate_config').with(
-          :enable_proxy_headers_parsing => '<SERVICE DEFAULT>'
+          :enable_proxy_headers_parsing => '<SERVICE DEFAULT>',
+          :max_request_body_size        => '<SERVICE DEFAULT>',
         )
       end
     end
@@ -82,6 +83,7 @@ describe 'designate::api' do
           :enabled_extensions_admin      => 'reports,quotas,zones',
           :quotas_verify_project_id      => false,
           :enable_proxy_headers_parsing  => true,
+          :max_request_body_size         => 102400,
         })
       end
 
@@ -104,7 +106,8 @@ describe 'designate::api' do
         is_expected.to contain_designate_config('service:api/enabled_extensions_admin').with_value(params[:enabled_extensions_admin])
         is_expected.to contain_designate_config('service:api/quotas_verify_project_id').with_value(false)
         is_expected.to contain_oslo__middleware('designate_config').with(
-          :enable_proxy_headers_parsing => params[:enable_proxy_headers_parsing]
+          :enable_proxy_headers_parsing => params[:enable_proxy_headers_parsing],
+          :max_request_body_size        => params[:max_request_body_size],
         )
       end
     end