diff --git a/manifests/api.pp b/manifests/api.pp
index 9cd13e46..f76dd867 100644
--- a/manifests/api.pp
+++ b/manifests/api.pp
@@ -42,6 +42,10 @@
 #   HTTPProxyToWSGI middleware.
 #   Defaults to $::os_service_default.
 #
+# [*max_request_body_size*]
+#   (Optional) Set max request body size
+#   Defaults to $::os_service_default.
+#
 # [*middlewares*]
 #   (optional) Middlewares to use.
 #   Defaults to $::os_service_default
@@ -55,6 +59,7 @@ class gnocchi::api (
   $sync_db                      = false,
   $auth_strategy                = 'keystone',
   $enable_proxy_headers_parsing = $::os_service_default,
+  $max_request_body_size        = $::os_service_default,
   $middlewares                  = $::os_service_default,
 ) inherits gnocchi::params {
 
@@ -114,6 +119,7 @@ standalone service, or httpd for being run by a httpd server")
 
   oslo::middleware { 'gnocchi_config':
     enable_proxy_headers_parsing => $enable_proxy_headers_parsing,
+    max_request_body_size        => $max_request_body_size,
   }
 
   if $auth_strategy == 'keystone' {
diff --git a/releasenotes/notes/max_request_body_size-99d457dd976374cc.yaml b/releasenotes/notes/max_request_body_size-99d457dd976374cc.yaml
new file mode 100644
index 00000000..f29fec52
--- /dev/null
+++ b/releasenotes/notes/max_request_body_size-99d457dd976374cc.yaml
@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Add support to configure `[oslo_middleware]/max_request_body_size` with
+    `$max_request_body_size`.
diff --git a/spec/classes/gnocchi_api_spec.rb b/spec/classes/gnocchi_api_spec.rb
index 96d03a66..21f84330 100644
--- a/spec/classes/gnocchi_api_spec.rb
+++ b/spec/classes/gnocchi_api_spec.rb
@@ -63,6 +63,7 @@ describe 'gnocchi::api' do
       is_expected.to contain_gnocchi_config('api/middlewares').with_value('<SERVICE DEFAULT>')
       is_expected.to contain_oslo__middleware('gnocchi_config').with(
         :enable_proxy_headers_parsing => '<SERVICE DEFAULT>',
+        :max_request_body_size        => '<SERVICE DEFAULT>',
       )
     end
 
@@ -165,6 +166,16 @@ describe 'gnocchi::api' do
       )}
     end
 
+    context 'with max_request_body_size' do
+      before do
+        params.merge!({:max_request_body_size => '102400' })
+      end
+
+      it { is_expected.to contain_oslo__middleware('gnocchi_config').with(
+        :max_request_body_size => '102400',
+      )}
+    end
+
   end
 
   on_supported_os({