diff --git a/change/@fluentui-web-components-2020-09-29-23-07-40-users-chhol-export-design-system-interface.json b/change/@fluentui-web-components-2020-09-29-23-07-40-users-chhol-export-design-system-interface.json
new file mode 100644
index 0000000000000..62a23183aa2c7
--- /dev/null
+++ b/change/@fluentui-web-components-2020-09-29-23-07-40-users-chhol-export-design-system-interface.json
@@ -0,0 +1,8 @@
+{
+  "type": "minor",
+  "comment": "export DesignSystem interface",
+  "packageName": "@fluentui/web-components",
+  "email": "chhol@microsoft.com",
+  "dependentChangeType": "patch",
+  "date": "2020-09-30T06:07:40.839Z"
+}
diff --git a/packages/web-components/src/design-system-provider/index.ts b/packages/web-components/src/design-system-provider/index.ts
index 498181cbd1242..7ffe7c524128e 100644
--- a/packages/web-components/src/design-system-provider/index.ts
+++ b/packages/web-components/src/design-system-provider/index.ts
@@ -572,4 +572,7 @@ export class FluentDesignSystemProvider extends DesignSystemProvider
   public neutralOutlineFocusDelta: number;
 }
 
-export { DesignSystem };
+export type FluentDesignSystem = Omit<
+  DesignSystem,
+  'contrast' | 'fontWeight' | 'neutralForegroundDarkIndex' | 'neutralForegroundLightIndex'
+>;