diff --git a/.changeset/tame-squids-yawn.md b/.changeset/tame-squids-yawn.md
new file mode 100644
index 00000000000..e05368437c5
--- /dev/null
+++ b/.changeset/tame-squids-yawn.md
@@ -0,0 +1,5 @@
+---
+'@astrojs/starlight': patch
+---
+
+Exports the `StarlightUserConfig` TypeScript type representing the user's Starlight configuration received by plugins.
diff --git a/packages/starlight/types.ts b/packages/starlight/types.ts
index 861d1afbb95..d5a2fcbb923 100644
--- a/packages/starlight/types.ts
+++ b/packages/starlight/types.ts
@@ -1,2 +1,5 @@
 export type { StarlightConfig } from './utils/user-config';
-export type { StarlightPlugin } from './utils/plugins';
+export type {
+	StarlightPlugin,
+	StarlightUserConfigWithPlugins as StarlightUserConfig,
+} from './utils/plugins';