diff --git a/include/windows.globalization.idl b/include/windows.globalization.idl
index 639d0d24411..49b484f6467 100644
--- a/include/windows.globalization.idl
+++ b/include/windows.globalization.idl
@@ -40,7 +40,11 @@ namespace Windows {
         interface ILanguageStatics;
         interface ILanguageStatics2;
         interface ILanguageStatics3;
+        interface IGeographicRegion;
+        interface IGeographicRegionFactory;
+        interface IGeographicRegionStatics;
         runtimeclass Language;
+        runtimeclass GeographicRegion;
     }
 }
 
@@ -163,6 +167,42 @@ namespace Windows {
             HRESULT GetMuiCompatibleLanguageListFromLanguageTags([in] Windows.Foundation.Collections.IIterable<HSTRING> *tags, [out, retval] Windows.Foundation.Collections.IVector<HSTRING> **result);
         }
 
+        [
+            contract(Windows.Foundation.UniversalApiContract, 1.0),
+            exclusiveto(Windows.Globalization.GeographicRegion),
+            uuid(01e9a621-4a64-4ed9-954f-9edeb07bd903)
+        ]
+        interface IGeographicRegion : IInspectable
+        {
+            [propget] HRESULT Code([out, retval] HSTRING *value);
+            [propget] HRESULT CodeTwoLetter([out, retval] HSTRING *value);
+            [propget] HRESULT CodeThreeLetter([out, retval] HSTRING *value);
+            [propget] HRESULT CodeThreeDigit([out, retval] HSTRING *value);
+            [propget] HRESULT DisplayName([out, retval] HSTRING *value);
+            [propget] HRESULT NativeName([out, retval] HSTRING *value);
+            [propget] HRESULT CurrenciesInUse([out, retval] Windows.Foundation.Collections.IVectorView<HSTRING> **value);
+        }
+
+        [
+            contract(Windows.Foundation.UniversalApiContract, 1.0),
+            exclusiveto(Windows.Globalization.GeographicRegion),
+            uuid(53425270-77b4-426b-859f-81e19d512546)
+        ]
+        interface IGeographicRegionFactory : IInspectable
+        {
+            HRESULT CreateGeographicRegion([in] HSTRING region_code, [out, retval] Windows.Globalization.GeographicRegion **result);
+        }
+
+        [
+            contract(Windows.Foundation.UniversalApiContract, 1.0),
+            exclusiveto(Windows.Globalization.GeographicRegion),
+            uuid(29e28974-7ad9-4ef4-8799-b3b44fadec08)
+        ]
+        interface IGeographicRegionStatics : IInspectable
+        {
+            HRESULT IsSupported([in] HSTRING region_code, [out, retval] boolean *result);
+        }
+
         [
             activatable(Windows.Globalization.ILanguageFactory, Windows.Foundation.UniversalApiContract, 1.0),
             contract(Windows.Foundation.UniversalApiContract, 1.0),
@@ -179,5 +219,18 @@ namespace Windows {
             [contract(Windows.Foundation.UniversalApiContract, 6.0)] interface Windows.Globalization.ILanguage2;
             [contract(Windows.Foundation.UniversalApiContract, 10.0)] interface Windows.Globalization.ILanguage3;
         }
+
+        [
+            activatable(Windows.Foundation.UniversalApiContract, 1.0),
+            activatable(Windows.Globalization.IGeographicRegionFactory, Windows.Foundation.UniversalApiContract, 1.0),
+            contract(Windows.Foundation.UniversalApiContract, 1.0),
+            marshaling_behavior(agile),
+            static(Windows.Globalization.IGeographicRegionStatics, Windows.Foundation.UniversalApiContract, 1.0),
+            threading(both)
+        ]
+        runtimeclass GeographicRegion
+        {
+            [contract(Windows.Foundation.UniversalApiContract, 1.0), default] interface Windows.Globalization.IGeographicRegion;
+        }
     }
 }