diff --git a/.changeset/catalog-entity-page-no-header.md b/.changeset/catalog-entity-page-no-header.md
new file mode 100644
index 0000000000..51cda8f087
--- /dev/null
+++ b/.changeset/catalog-entity-page-no-header.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-catalog': patch
+---
+
+Disabled the default page layout header for the catalog entity page in the new frontend system. The entity page already renders its own header through the `EntityHeader` extension, so the page layout header was redundant.
diff --git a/plugins/catalog/src/alpha/pages.tsx b/plugins/catalog/src/alpha/pages.tsx
index f8f09dad3b..7240e8aaa0 100644
--- a/plugins/catalog/src/alpha/pages.tsx
+++ b/plugins/catalog/src/alpha/pages.tsx
@@ -125,6 +125,7 @@ export const catalogEntityPage = PageBlueprint.makeWithOverrides({
   factory(originalFactory, { config, inputs }) {
     return originalFactory({
       path: '/catalog/:namespace/:kind/:name',
+      noHeader: true,
       title: 'Catalog Entity',
       // NOTE: The `convertLegacyRouteRef` call here ensures that this route ref
       // is mutated to support the new frontend system. Removing this conversion