diff --git a/React/Modules/RCTUIManager.m b/React/Modules/RCTUIManager.m
index 840b4501805465..7e3a67b485cb0e 100644
--- a/React/Modules/RCTUIManager.m
+++ b/React/Modules/RCTUIManager.m
@@ -1398,6 +1398,7 @@ static void RCTMeasureLayout(RCTShadowView *view,
                   errorCallback:(__unused RCTResponseSenderBlock)errorCallback
                   callback:(RCTResponseSenderBlock)callback)
 {
+  RCTLogWarn(@"RCTUIManager.measureLayoutRelativeToParent method is deprecated and it will not be implemented in newer versions of RN (Fabric) - T47686450");
   RCTShadowView *shadowView = _shadowViewRegistry[reactTag];
   RCTMeasureLayout(shadowView, shadowView.reactSuperview, callback);
 }
diff --git a/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.java b/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.java
index 3b703e34640704..1f35d92cfbbca1 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.java
+++ b/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.java
@@ -607,8 +607,11 @@ public void measureLayout(
    * <p>NB: Unlike {@link #measure}, this will measure relative to the view layout, not the visible
    * window which can cause unexpected results when measuring relative to things like ScrollViews
    * that can have offset content on the screen.
+   *
+   * @deprecated This method will not be part of Fabric.
    */
   @ReactMethod
+  @Deprecated
   public void measureLayoutRelativeToParent(
       int tag, Callback errorCallback, Callback successCallback) {
     mUIImplementation.measureLayoutRelativeToParent(tag, errorCallback, successCallback);