diff --git a/Apps/Sandcastle/gallery/Star Burst.html b/Apps/Sandcastle/gallery/Star Burst.html
index ba67dfb41de..539b432f3e2 100644
--- a/Apps/Sandcastle/gallery/Star Burst.html	
+++ b/Apps/Sandcastle/gallery/Star Burst.html	
@@ -320,7 +320,7 @@
 
           // Remove the star burst if the mouse exits the screen space circle.
           // If the mouse is inside the circle, show the label of the billboard the mouse is hovering over.
-          const screenPosition = Cesium.SceneTransforms.wgs84ToWindowCoordinates(
+          const screenPosition = Cesium.SceneTransforms.worldToWindowCoordinates(
             scene,
             starBurstState.center
           );
diff --git a/CHANGES.md b/CHANGES.md
index c1987653cb5..f25962e4bed 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -23,6 +23,9 @@
 
 ##### Breaking Changes :mega:
 
+- `SceneTransforms.wgs84ToWindowCoordinates` has been removed. Use `SceneTransforms.worldToWindowCoordinates` instead.
+- `SceneTransforms.wgs84ToDrawingBufferCoordinates` has been removed. Use `SceneTransforms.worldToDrawingBufferCoordinates` instead.
+
 - Removed `jitter` option from `VoxelPrimitive.js`, `VoxelRenderResources.js`, and related test code in `VoxelPrimitiveSpec.js`. [#11913](https://github.com/CesiumGS/cesium/issues/11913)
 
 - Custom specular environment maps in `ImageBasedLighting` now require either a WebGL2 context or a WebGL1 context that supports the [`EXT_shader_texture_lod` extension](https://registry.khronos.org/webgl/extensions/EXT_shader_texture_lod/).
diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 473b80fe3d0..d38bd04d9ac 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -406,3 +406,4 @@ See [CONTRIBUTING.md](CONTRIBUTING.md) for details on how to contribute to Cesiu
 - [Levi Montgomery](https://github.com/Levi-Montgomery)
 - [Brandon Berisford](https://github.com/BeyondBelief96)
 - [Adam Wirth](https://https://github.com/adamwirth)
+- [Javier Sanchez](https://github.com/jvrjsanchez)
diff --git a/packages/engine/Source/Scene/SceneTransforms.js b/packages/engine/Source/Scene/SceneTransforms.js
index df0954df213..84ae7a032b5 100644
--- a/packages/engine/Source/Scene/SceneTransforms.js
+++ b/packages/engine/Source/Scene/SceneTransforms.js
@@ -4,7 +4,6 @@ import Cartesian3 from "../Core/Cartesian3.js";
 import Cartesian4 from "../Core/Cartesian4.js";
 import Cartographic from "../Core/Cartographic.js";
 import defined from "../Core/defined.js";
-import deprecationWarning from "../Core/deprecationWarning.js";
 import DeveloperError from "../Core/DeveloperError.js";
 import CesiumMath from "../Core/Math.js";
 import Matrix4 from "../Core/Matrix4.js";
@@ -53,33 +52,6 @@ SceneTransforms.worldToWindowCoordinates = function (scene, position, result) {
   );
 };
 
-/**
- * Transforms a position in WGS84 coordinates to window coordinates.  This is commonly used to place an
- * HTML element at the same screen position as an object in the scene.
- *
- * @param {Scene} scene The scene.
- * @param {Cartesian3} position The position in WGS84 (world) coordinates.
- * @param {Cartesian2} [result] An optional object to return the input position transformed to window coordinates.
- * @returns {Cartesian2|undefined} The modified result parameter or a new Cartesian2 instance if one was not provided.  This may be <code>undefined</code> if the input position is near the center of the ellipsoid.
- *
- * @example
- * // Output the window position of longitude/latitude (0, 0) every time the mouse moves.
- * const scene = widget.scene;
- * const ellipsoid = scene.ellipsoid;
- * const position = Cesium.Cartesian3.fromDegrees(0.0, 0.0);
- * const handler = new Cesium.ScreenSpaceEventHandler(scene.canvas);
- * handler.setInputAction(function(movement) {
- *     console.log(Cesium.SceneTransforms.wgs84ToWindowCoordinates(scene, position));
- * }, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
- */
-SceneTransforms.wgs84ToWindowCoordinates = function (scene, position, result) {
-  deprecationWarning(
-    "SceneTransforms.wgs84ToWindowCoordinates",
-    "SceneTransforms.wgs84ToWindowCoordinates has been deprecated. It will be removed in 1.21. Use SceneTransforms.worldToWindowCoordinates instead."
-  );
-  return SceneTransforms.worldToWindowCoordinates(scene, position, result);
-};
-
 const scratchCartesian4 = new Cartesian4();
 const scratchEyeOffset = new Cartesian3();
 
@@ -320,40 +292,6 @@ SceneTransforms.worldToDrawingBufferCoordinates = function (
   return SceneTransforms.transformWindowToDrawingBuffer(scene, result, result);
 };
 
-/**
- * Transforms a position in world coordinates to drawing buffer coordinates.  This may produce different
- * results from SceneTransforms.wgs84ToWindowCoordinates when the browser zoom is not 100%, or on high-DPI displays.
- *
- * @param {Scene} scene The scene.
- * @param {Cartesian3} position The position in world (WGS84 or alternative ellipsoid) coordinates.
- * @param {Cartesian2} [result] An optional object to return the input position transformed to window coordinates.
- * @returns {Cartesian2|undefined} The modified result parameter or a new Cartesian2 instance if one was not provided.  This may be <code>undefined</code> if the input position is near the center of the ellipsoid.
- *
- * @example
- * // Output the window position of longitude/latitude (0, 0) every time the mouse moves.
- * const position = Cesium.Cartesian3.fromDegrees(0.0, 0.0);
- * const handler = new Cesium.ScreenSpaceEventHandler(scene.canvas);
- * handler.setInputAction(function(movement) {
- *     console.log(Cesium.SceneTransforms.wgs84ToWindowCoordinates(scene, position));
- * }, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
- */
-SceneTransforms.wgs84ToDrawingBufferCoordinates = function (
-  scene,
-  position,
-  result
-) {
-  deprecationWarning(
-    "SceneTransforms.wgs84ToDrawingBufferCoordinates",
-    "SceneTransforms.wgs84ToDrawingBufferCoordinates has been deprecated. It will be removed in 1.21. Use SceneTransforms.worldToDrawingBufferCoordinates instead."
-  );
-
-  return SceneTransforms.worldToDrawingBufferCoordinates(
-    scene,
-    position,
-    result
-  );
-};
-
 const projectedPosition = new Cartesian3();
 const positionInCartographic = new Cartographic();
 
diff --git a/packages/engine/Specs/Scene/SceneTransformsSpec.js b/packages/engine/Specs/Scene/SceneTransformsSpec.js
index 0839423d89e..180a57ed445 100644
--- a/packages/engine/Specs/Scene/SceneTransformsSpec.js
+++ b/packages/engine/Specs/Scene/SceneTransformsSpec.js
@@ -40,13 +40,13 @@ describe(
     it("throws an exception without scene", function () {
       const position = Cartesian3.fromDegrees(0.0, 0.0);
       expect(function () {
-        SceneTransforms.wgs84ToWindowCoordinates(undefined, position);
+        SceneTransforms.worldToWindowCoordinates(undefined, position);
       }).toThrowDeveloperError();
     });
 
     it("throws an exception without position", function () {
       expect(function () {
-        SceneTransforms.wgs84ToWindowCoordinates(scene);
+        SceneTransforms.worldToWindowCoordinates(scene);
       }).toThrowDeveloperError();
     });
 
@@ -61,7 +61,7 @@ describe(
       // Update scene state
       scene.renderForSpecs();
 
-      const windowCoordinates = SceneTransforms.wgs84ToWindowCoordinates(
+      const windowCoordinates = SceneTransforms.worldToWindowCoordinates(
         scene,
         position
       );
@@ -80,7 +80,7 @@ describe(
       // Update scene state
       scene.renderForSpecs();
 
-      const drawingBufferCoordinates = SceneTransforms.wgs84ToDrawingBufferCoordinates(
+      const drawingBufferCoordinates = SceneTransforms.worldToDrawingBufferCoordinates(
         scene,
         position
       );
@@ -105,7 +105,7 @@ describe(
       // Update scene state
       scene.renderForSpecs();
 
-      const windowCoordinates = SceneTransforms.wgs84ToWindowCoordinates(
+      const windowCoordinates = SceneTransforms.worldToWindowCoordinates(
         scene,
         position
       );
@@ -123,7 +123,7 @@ describe(
       // Update scene state
       scene.renderForSpecs();
 
-      const drawingBufferCoordinates = SceneTransforms.wgs84ToDrawingBufferCoordinates(
+      const drawingBufferCoordinates = SceneTransforms.worldToDrawingBufferCoordinates(
         scene,
         position
       );
@@ -138,7 +138,7 @@ describe(
       const actualWindowCoordinates = new Cartesian2(0.5, 0.5);
       const position = scene.camera.pickEllipsoid(actualWindowCoordinates);
 
-      const windowCoordinates = SceneTransforms.wgs84ToWindowCoordinates(
+      const windowCoordinates = SceneTransforms.worldToWindowCoordinates(
         scene,
         position
       );
@@ -158,7 +158,7 @@ describe(
         actualDrawingBufferCoordinates
       );
 
-      const drawingBufferCoordinates = SceneTransforms.wgs84ToDrawingBufferCoordinates(
+      const drawingBufferCoordinates = SceneTransforms.worldToDrawingBufferCoordinates(
         scene,
         position
       );
@@ -182,7 +182,7 @@ describe(
         scene.camera.direction
       );
 
-      const windowCoordinates = SceneTransforms.wgs84ToWindowCoordinates(
+      const windowCoordinates = SceneTransforms.worldToWindowCoordinates(
         scene,
         position
       );
@@ -203,7 +203,7 @@ describe(
         scene.camera.direction
       );
 
-      const drawingBufferCoordinates = SceneTransforms.wgs84ToDrawingBufferCoordinates(
+      const drawingBufferCoordinates = SceneTransforms.worldToDrawingBufferCoordinates(
         scene,
         position
       );
@@ -225,7 +225,7 @@ describe(
       scene.renderForSpecs();
 
       const position = Cartesian3.fromDegrees(0, 0);
-      const windowCoordinates = SceneTransforms.wgs84ToWindowCoordinates(
+      const windowCoordinates = SceneTransforms.worldToWindowCoordinates(
         scene,
         position
       );
@@ -256,7 +256,7 @@ describe(
       });
 
       const position = Cartesian3.fromDegrees(0, 0);
-      const windowCoordinates = SceneTransforms.wgs84ToWindowCoordinates(
+      const windowCoordinates = SceneTransforms.worldToWindowCoordinates(
         scene,
         position
       );
@@ -283,7 +283,7 @@ describe(
       scene.renderForSpecs();
 
       const position = Cartesian3.fromDegrees(0, 0);
-      const drawingBufferCoordinates = SceneTransforms.wgs84ToDrawingBufferCoordinates(
+      const drawingBufferCoordinates = SceneTransforms.worldToDrawingBufferCoordinates(
         scene,
         position
       );
@@ -306,7 +306,7 @@ describe(
       scene.renderForSpecs();
 
       const position = Cartesian3.fromDegrees(-80, 25);
-      const windowCoordinates = SceneTransforms.wgs84ToWindowCoordinates(
+      const windowCoordinates = SceneTransforms.worldToWindowCoordinates(
         scene,
         position
       );