diff --git a/include/Makefile.in b/include/Makefile.in
index 19dacb850ed..42f5aa47dcb 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -821,6 +821,7 @@ SOURCES = \
 	windows.media.idl \
 	windows.media.speechrecognition.idl \
 	windows.media.speechsynthesis.idl \
+	windows.perception.spatial.idl \
 	windows.security.credentials.idl \
 	windows.security.cryptography.idl \
 	windows.storage.streams.idl \
diff --git a/include/windows.perception.spatial.idl b/include/windows.perception.spatial.idl
new file mode 100644
index 00000000000..d19330963f7
--- /dev/null
+++ b/include/windows.perception.spatial.idl
@@ -0,0 +1,180 @@
+/*
+ * Copyright (C) 2023 Mohamad Al-Jaf
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifdef __WIDL__
+#pragma winrt ns_prefix
+#endif
+
+import "inspectable.idl";
+import "asyncinfo.idl";
+import "eventtoken.idl";
+import "windowscontracts.idl";
+import "windows.foundation.idl";
+import "windows.foundation.numerics.idl";
+/* import "windows.perception.idl"; */
+import "windows.storage.streams.idl";
+/* import "windows.system.remotesystems.idl"; */
+
+namespace Windows.Perception.Spatial {
+    typedef enum SpatialPerceptionAccessStatus SpatialPerceptionAccessStatus;
+    typedef struct SpatialBoundingBox SpatialBoundingBox;
+    typedef struct SpatialBoundingFrustum SpatialBoundingFrustum;
+    typedef struct SpatialBoundingOrientedBox SpatialBoundingOrientedBox;
+    typedef struct SpatialBoundingSphere SpatialBoundingSphere;
+
+    interface ISpatialBoundingVolume;
+    interface ISpatialBoundingVolumeStatics;
+    interface ISpatialCoordinateSystem;
+
+    runtimeclass SpatialBoundingVolume;
+    runtimeclass SpatialCoordinateSystem;
+
+    declare {
+        interface Windows.Foundation.Collections.IIterable<Windows.Perception.Spatial.SpatialBoundingVolume *>;
+        interface Windows.Foundation.Collections.IIterator<Windows.Perception.Spatial.SpatialBoundingVolume *>;
+        interface Windows.Foundation.AsyncOperationCompletedHandler<Windows.Perception.Spatial.SpatialPerceptionAccessStatus>;
+        interface Windows.Foundation.IAsyncOperation<Windows.Perception.Spatial.SpatialPerceptionAccessStatus>;
+        interface Windows.Foundation.IReference<Windows.Perception.Spatial.SpatialBoundingBox>;
+        interface Windows.Foundation.IReference<Windows.Perception.Spatial.SpatialBoundingFrustum>;
+        interface Windows.Foundation.IReference<Windows.Perception.Spatial.SpatialBoundingOrientedBox>;
+    }
+
+    [
+        contract(Windows.Foundation.UniversalApiContract, 2.0)
+    ]
+    enum SpatialPerceptionAccessStatus
+    {
+        Unspecified    = 0,
+        Allowed        = 1,
+        DeniedByUser   = 2,
+        DeniedBySystem = 3,
+    };
+
+    [
+        contract(Windows.Foundation.UniversalApiContract, 2.0)
+    ]
+    struct SpatialBoundingBox
+    {
+        Windows.Foundation.Numerics.Vector3 Center;
+        Windows.Foundation.Numerics.Vector3 Extents;
+    };
+
+    [
+        contract(Windows.Foundation.UniversalApiContract, 2.0)
+    ]
+    struct SpatialBoundingFrustum
+    {
+        Windows.Foundation.Numerics.Plane Near;
+        Windows.Foundation.Numerics.Plane Far;
+        Windows.Foundation.Numerics.Plane Right;
+        Windows.Foundation.Numerics.Plane Left;
+        Windows.Foundation.Numerics.Plane Top;
+        Windows.Foundation.Numerics.Plane Bottom;
+    };
+
+    [
+        contract(Windows.Foundation.UniversalApiContract, 2.0)
+    ]
+    struct SpatialBoundingOrientedBox
+    {
+        Windows.Foundation.Numerics.Vector3 Center;
+        Windows.Foundation.Numerics.Vector3 Extents;
+        Windows.Foundation.Numerics.Quaternion Orientation;
+    };
+
+    [
+        contract(Windows.Foundation.UniversalApiContract, 2.0)
+    ]
+    struct SpatialBoundingSphere
+    {
+        Windows.Foundation.Numerics.Vector3 Center;
+        FLOAT Radius;
+    };
+
+    [
+        contract(Windows.Foundation.UniversalApiContract, 2.0),
+        exclusiveto(Windows.Perception.Spatial.SpatialBoundingVolume),
+        uuid(fb2065da-68c3-33df-b7af-4c787207999c)
+    ]
+    interface ISpatialBoundingVolume : IInspectable
+    {
+    }
+
+    [
+        contract(Windows.Foundation.UniversalApiContract, 2.0),
+        exclusiveto(Windows.Perception.Spatial.SpatialBoundingVolume),
+        uuid(05889117-b3e1-36d8-b017-566181a5b196)
+    ]
+    interface ISpatialBoundingVolumeStatics : IInspectable
+    {
+        HRESULT FromBox(
+            [in] Windows.Perception.Spatial.SpatialCoordinateSystem *system,
+            [in] Windows.Perception.Spatial.SpatialBoundingBox box,
+            [out, retval] Windows.Perception.Spatial.SpatialBoundingVolume **value
+        );
+        HRESULT FromOrientedBox(
+            [in] Windows.Perception.Spatial.SpatialCoordinateSystem *system,
+            [in] Windows.Perception.Spatial.SpatialBoundingOrientedBox box,
+            [out, retval] Windows.Perception.Spatial.SpatialBoundingVolume **value
+        );
+        HRESULT FromSphere(
+            [in] Windows.Perception.Spatial.SpatialCoordinateSystem *system,
+            [in] Windows.Perception.Spatial.SpatialBoundingSphere sphere,
+            [out, retval] Windows.Perception.Spatial.SpatialBoundingVolume **value
+        );
+        HRESULT FromFrustum(
+            [in] Windows.Perception.Spatial.SpatialCoordinateSystem *system,
+            [in] Windows.Perception.Spatial.SpatialBoundingFrustum frustum,
+            [out, retval] Windows.Perception.Spatial.SpatialBoundingVolume **value
+        );
+    }
+
+    [
+        contract(Windows.Foundation.UniversalApiContract, 2.0),
+        exclusiveto(Windows.Perception.Spatial.SpatialCoordinateSystem),
+        uuid(69ebca4b-60a3-3586-a653-59a7bd676d07)
+    ]
+    interface ISpatialCoordinateSystem : IInspectable
+    {
+        HRESULT TryGetTransformTo(
+            [in] Windows.Perception.Spatial.SpatialCoordinateSystem *target,
+            [out, retval] Windows.Foundation.IReference<Windows.Foundation.Numerics.Matrix4x4> **value
+        );
+    }
+
+    [
+        contract(Windows.Foundation.UniversalApiContract, 2.0),
+        marshaling_behavior(agile),
+        static(Windows.Perception.Spatial.ISpatialBoundingVolumeStatics, Windows.Foundation.UniversalApiContract, 2.0),
+        threading(both)
+    ]
+    runtimeclass SpatialBoundingVolume
+    {
+        [default] interface Windows.Perception.Spatial.ISpatialBoundingVolume;
+    }
+
+    [
+        contract(Windows.Foundation.UniversalApiContract, 2.0),
+        marshaling_behavior(agile),
+        threading(both)
+    ]
+    runtimeclass SpatialCoordinateSystem
+    {
+        [default] interface Windows.Perception.Spatial.ISpatialCoordinateSystem;
+    }
+}