diff --git a/types/mapbox-gl/index.d.ts b/types/mapbox-gl/index.d.ts
index 8a80a24b83..d71754a957 100644
--- a/types/mapbox-gl/index.d.ts
+++ b/types/mapbox-gl/index.d.ts
@@ -971,6 +971,35 @@ declare namespace mapboxgl {
         static convert(a: PointLike): Point;
     }
 
+    /**
+     * MercatorCoordinate
+     */
+    export class MercatorCoordinate {
+        /** The x component of the position. */
+        x: number;
+
+        /** The y component of the position. */
+        y: number;
+
+        /**
+         * The z component of the position.
+         *
+         * @default 0
+         */
+        z?: number;
+
+        constructor(x: number, y: number, z?: number);
+
+        /** Returns the altitude in meters of the coordinate. */
+        toAltitude(): number;
+
+        /** Returns the LngLat for the coordinate. */
+        toLngLat(): LngLat;
+
+        /** Project a LngLat to a MercatorCoordinate. */
+        static fromLngLat(lngLatLike: LngLatLike, altitude?: number): MercatorCoordinate;
+    }
+
     /**
      * Marker
      */
diff --git a/types/mapbox-gl/mapbox-gl-tests.ts b/types/mapbox-gl/mapbox-gl-tests.ts
index 92f0c6c7c7..02325c4e8c 100644
--- a/types/mapbox-gl/mapbox-gl-tests.ts
+++ b/types/mapbox-gl/mapbox-gl-tests.ts
@@ -407,6 +407,7 @@ attributionControl.on('click', () => {});
 declare var lnglat: mapboxgl.LngLat;
 declare var lnglatlike: mapboxgl.LngLatLike;
 declare var lnglatboundslike: mapboxgl.LngLatBoundsLike;
+declare var mercatorcoordinate: mapboxgl.MercatorCoordinate;
 declare var pointlike: mapboxgl.PointLike;
 
 function expectType<T>(value: T) { /* let the compiler handle things */ }
@@ -460,6 +461,17 @@ expectType<mapboxgl.PointLike>([0, 0]);
 new mapboxgl.Point(0, 0);
 expectType<mapboxgl.Point>(mapboxgl.Point.convert(pointlike));
 
+/*
+ * MercatorCoordinate
+ */
+
+new mapboxgl.MercatorCoordinate(0, 0);
+new mapboxgl.MercatorCoordinate(0, 0, 0);
+expectType<number>(mercatorcoordinate.toAltitude());
+expectType<mapboxgl.LngLat>(mercatorcoordinate.toLngLat());
+expectType<mapboxgl.MercatorCoordinate>(mapboxgl.MercatorCoordinate.fromLngLat(lnglatlike));
+expectType<mapboxgl.MercatorCoordinate>(mapboxgl.MercatorCoordinate.fromLngLat(lnglatlike, 0));
+
 /*
  * TransformRequestFunction
  */