diff --git a/packages/react-native/ReactAndroid/api/ReactAndroid.api b/packages/react-native/ReactAndroid/api/ReactAndroid.api
index a5fa388742a7..8c91b5df70c8 100644
--- a/packages/react-native/ReactAndroid/api/ReactAndroid.api
+++ b/packages/react-native/ReactAndroid/api/ReactAndroid.api
@@ -1372,8 +1372,8 @@ public abstract interface class com/facebook/react/bridge/UIManager : com/facebo
 	public abstract fun initialize ()V
 	public abstract fun invalidate ()V
 	public abstract fun markActiveTouchForTag (II)V
-	public abstract fun receiveEvent (IILjava/lang/String;Lcom/facebook/react/bridge/WritableMap;)V
-	public abstract fun receiveEvent (ILjava/lang/String;Lcom/facebook/react/bridge/WritableMap;)V
+	public abstract fun receiveEvent (IILjava/lang/String;Lcom/facebook/react/bridge/ReadableMap;)V
+	public abstract fun receiveEvent (ILjava/lang/String;Lcom/facebook/react/bridge/ReadableMap;)V
 	public abstract fun removeUIManagerEventListener (Lcom/facebook/react/bridge/UIManagerListener;)V
 	public abstract fun resolveCustomDirectEventName (Ljava/lang/String;)Ljava/lang/String;
 	public abstract fun resolveView (I)Landroid/view/View;
@@ -2275,11 +2275,11 @@ public class com/facebook/react/fabric/FabricUIManager : com/facebook/react/brid
 	public fun onRequestEventBeat ()V
 	public fun prependUIBlock (Lcom/facebook/react/fabric/interop/UIBlock;)V
 	public fun profileNextBatch ()V
-	public fun receiveEvent (IILjava/lang/String;Lcom/facebook/react/bridge/WritableMap;)V
-	public fun receiveEvent (IILjava/lang/String;ZLcom/facebook/react/bridge/WritableMap;I)V
-	public fun receiveEvent (IILjava/lang/String;ZLcom/facebook/react/bridge/WritableMap;IZ)V
-	public fun receiveEvent (IILjava/lang/String;ZLcom/facebook/react/bridge/WritableMap;IZJ)V
-	public fun receiveEvent (ILjava/lang/String;Lcom/facebook/react/bridge/WritableMap;)V
+	public fun receiveEvent (IILjava/lang/String;Lcom/facebook/react/bridge/ReadableMap;)V
+	public fun receiveEvent (IILjava/lang/String;ZLcom/facebook/react/bridge/ReadableMap;I)V
+	public fun receiveEvent (IILjava/lang/String;ZLcom/facebook/react/bridge/ReadableMap;IZ)V
+	public fun receiveEvent (IILjava/lang/String;ZLcom/facebook/react/bridge/ReadableMap;IZJ)V
+	public fun receiveEvent (ILjava/lang/String;Lcom/facebook/react/bridge/ReadableMap;)V
 	public fun removeUIManagerEventListener (Lcom/facebook/react/bridge/UIManagerListener;)V
 	public fun resolveCustomDirectEventName (Ljava/lang/String;)Ljava/lang/String;
 	public fun resolveView (I)Landroid/view/View;
@@ -3503,6 +3503,7 @@ public final class com/facebook/react/uimanager/NativeViewHierarchyOptimizer {
 
 public final class com/facebook/react/uimanager/OnLayoutEvent : com/facebook/react/uimanager/events/Event {
 	public static final field Companion Lcom/facebook/react/uimanager/OnLayoutEvent$Companion;
+	public synthetic fun getEventData ()Lcom/facebook/react/bridge/ReadableMap;
 	public fun getEventName ()Ljava/lang/String;
 	public static final fun obtain (IIIII)Lcom/facebook/react/uimanager/OnLayoutEvent;
 	public static final fun obtain (IIIIII)Lcom/facebook/react/uimanager/OnLayoutEvent;
@@ -4275,8 +4276,8 @@ public class com/facebook/react/uimanager/UIManagerModule : com/facebook/react/b
 	public fun onHostResume ()V
 	public fun prependUIBlock (Lcom/facebook/react/uimanager/UIBlock;)V
 	public fun profileNextBatch ()V
-	public fun receiveEvent (IILjava/lang/String;Lcom/facebook/react/bridge/WritableMap;)V
-	public fun receiveEvent (ILjava/lang/String;Lcom/facebook/react/bridge/WritableMap;)V
+	public fun receiveEvent (IILjava/lang/String;Lcom/facebook/react/bridge/ReadableMap;)V
+	public fun receiveEvent (ILjava/lang/String;Lcom/facebook/react/bridge/ReadableMap;)V
 	public fun removeRootView (I)V
 	public fun removeUIManagerEventListener (Lcom/facebook/react/bridge/UIManagerListener;)V
 	public fun resolveCustomDirectEventName (Ljava/lang/String;)Ljava/lang/String;
@@ -4679,6 +4680,7 @@ public abstract interface class com/facebook/react/uimanager/events/BatchEventDi
 public final class com/facebook/react/uimanager/events/ContentSizeChangeEvent : com/facebook/react/uimanager/events/Event {
 	public fun <init> (III)V
 	public fun <init> (IIII)V
+	public synthetic fun getEventData ()Lcom/facebook/react/bridge/ReadableMap;
 	public fun getEventName ()Ljava/lang/String;
 }
 
@@ -4695,7 +4697,7 @@ public abstract class com/facebook/react/uimanager/events/Event {
 	public fun getCoalescingKey ()S
 	public fun getEventAnimationDriverMatchSpec ()Lcom/facebook/react/uimanager/events/Event$EventAnimationDriverMatchSpec;
 	protected fun getEventCategory ()I
-	protected fun getEventData ()Lcom/facebook/react/bridge/WritableMap;
+	protected fun getEventData ()Lcom/facebook/react/bridge/ReadableMap;
 	public abstract fun getEventName ()Ljava/lang/String;
 	public final fun getSurfaceId ()I
 	public final fun getTimestampMs ()J
@@ -4734,7 +4736,7 @@ public final class com/facebook/react/uimanager/events/NativeGestureUtil {
 }
 
 public abstract interface class com/facebook/react/uimanager/events/RCTEventEmitter : com/facebook/react/bridge/JavaScriptModule {
-	public abstract fun receiveEvent (ILjava/lang/String;Lcom/facebook/react/bridge/WritableMap;)V
+	public abstract fun receiveEvent (ILjava/lang/String;Lcom/facebook/react/bridge/ReadableMap;)V
 	public fun receiveTouches (Ljava/lang/String;Lcom/facebook/react/bridge/WritableArray;Lcom/facebook/react/bridge/WritableArray;)V
 }
 
@@ -4743,16 +4745,16 @@ public final class com/facebook/react/uimanager/events/RCTEventEmitter$DefaultIm
 }
 
 public abstract interface class com/facebook/react/uimanager/events/RCTModernEventEmitter : com/facebook/react/uimanager/events/RCTEventEmitter {
-	public fun receiveEvent (IILjava/lang/String;Lcom/facebook/react/bridge/WritableMap;)V
-	public abstract fun receiveEvent (IILjava/lang/String;ZILcom/facebook/react/bridge/WritableMap;I)V
-	public fun receiveEvent (IILjava/lang/String;ZILcom/facebook/react/bridge/WritableMap;IJ)V
-	public fun receiveEvent (ILjava/lang/String;Lcom/facebook/react/bridge/WritableMap;)V
+	public fun receiveEvent (IILjava/lang/String;Lcom/facebook/react/bridge/ReadableMap;)V
+	public abstract fun receiveEvent (IILjava/lang/String;ZILcom/facebook/react/bridge/ReadableMap;I)V
+	public fun receiveEvent (IILjava/lang/String;ZILcom/facebook/react/bridge/ReadableMap;IJ)V
+	public fun receiveEvent (ILjava/lang/String;Lcom/facebook/react/bridge/ReadableMap;)V
 }
 
 public final class com/facebook/react/uimanager/events/RCTModernEventEmitter$DefaultImpls {
-	public static fun receiveEvent (Lcom/facebook/react/uimanager/events/RCTModernEventEmitter;IILjava/lang/String;Lcom/facebook/react/bridge/WritableMap;)V
-	public static fun receiveEvent (Lcom/facebook/react/uimanager/events/RCTModernEventEmitter;IILjava/lang/String;ZILcom/facebook/react/bridge/WritableMap;IJ)V
-	public static fun receiveEvent (Lcom/facebook/react/uimanager/events/RCTModernEventEmitter;ILjava/lang/String;Lcom/facebook/react/bridge/WritableMap;)V
+	public static fun receiveEvent (Lcom/facebook/react/uimanager/events/RCTModernEventEmitter;IILjava/lang/String;Lcom/facebook/react/bridge/ReadableMap;)V
+	public static fun receiveEvent (Lcom/facebook/react/uimanager/events/RCTModernEventEmitter;IILjava/lang/String;ZILcom/facebook/react/bridge/ReadableMap;IJ)V
+	public static fun receiveEvent (Lcom/facebook/react/uimanager/events/RCTModernEventEmitter;ILjava/lang/String;Lcom/facebook/react/bridge/ReadableMap;)V
 	public static fun receiveTouches (Lcom/facebook/react/uimanager/events/RCTModernEventEmitter;Ljava/lang/String;Lcom/facebook/react/bridge/WritableArray;Lcom/facebook/react/bridge/WritableArray;)V
 }
 
@@ -5238,6 +5240,7 @@ public final class com/facebook/react/views/image/ImageLoadEvent : com/facebook/
 	public static final fun createProgressEvent (ILjava/lang/String;II)Lcom/facebook/react/views/image/ImageLoadEvent;
 	public static final fun eventNameForType (I)Ljava/lang/String;
 	public fun getCoalescingKey ()S
+	public synthetic fun getEventData ()Lcom/facebook/react/bridge/ReadableMap;
 	public fun getEventName ()Ljava/lang/String;
 }
 
@@ -5924,6 +5927,7 @@ public final class com/facebook/react/views/scroll/ReactScrollViewManager$Compan
 public final class com/facebook/react/views/scroll/ScrollEvent : com/facebook/react/uimanager/events/Event {
 	public static final field Companion Lcom/facebook/react/views/scroll/ScrollEvent$Companion;
 	public fun canCoalesce ()Z
+	public synthetic fun getEventData ()Lcom/facebook/react/bridge/ReadableMap;
 	public fun getEventName ()Ljava/lang/String;
 	public static final fun obtain (IILcom/facebook/react/views/scroll/ScrollEventType;FFFFIIII)Lcom/facebook/react/views/scroll/ScrollEvent;
 	public static final fun obtain (ILcom/facebook/react/views/scroll/ScrollEventType;FFFFIIII)Lcom/facebook/react/views/scroll/ScrollEvent;
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/EventAnimationDriver.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/EventAnimationDriver.kt
index b40e19efa966..431ac82094b5 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/EventAnimationDriver.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/animated/EventAnimationDriver.kt
@@ -11,7 +11,6 @@ import com.facebook.react.bridge.ReadableArray
 import com.facebook.react.bridge.ReadableMap
 import com.facebook.react.bridge.ReadableType
 import com.facebook.react.bridge.UnexpectedNativeTypeException
-import com.facebook.react.bridge.WritableMap
 import com.facebook.react.uimanager.events.EventCategoryDef
 import com.facebook.react.uimanager.events.RCTModernEventEmitter
 
@@ -29,7 +28,7 @@ internal class EventAnimationDriver(
       eventName: String,
       canCoalesceEvent: Boolean,
       customCoalesceKey: Int,
-      params: WritableMap?,
+      params: ReadableMap?,
       @EventCategoryDef category: Int,
   ) {
     requireNotNull(params) { "Native animated events must have event data." }
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/UIManager.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/UIManager.kt
index 7587d9cc7a89..ac10eaf2de32 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/UIManager.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/UIManager.kt
@@ -25,7 +25,7 @@ public interface UIManager : PerformanceCounter {
   @ThreadConfined(ThreadConfined.UI)
   @Deprecated(
       "This legacy surface API will be removed in a future release. " +
-          "Use ReactHost.createSurface(...) and ReactSurface.start() instead."
+          "Use ReactHost.createSurface(...) and ReactSurface.start() instead.",
   )
   public fun <T : View> addRootView(rootView: T, initialProps: WritableMap?): Int
 
@@ -37,7 +37,7 @@ public interface UIManager : PerformanceCounter {
   @AnyThread
   @Deprecated(
       "This legacy surface API will be removed in a future release. " +
-          "Use ReactHost.createSurface(...) and ReactSurface.start() instead."
+          "Use ReactHost.createSurface(...) and ReactSurface.start() instead.",
   )
   public fun <T : View?> startSurface(
       rootView: T,
@@ -55,7 +55,7 @@ public interface UIManager : PerformanceCounter {
    */
   @AnyThread
   @Deprecated(
-      "This legacy surface API will be removed in a future release. Use ReactSurface.stop() instead."
+      "This legacy surface API will be removed in a future release. Use ReactSurface.stop() instead.",
   )
   public fun stopSurface(surfaceId: Int)
 
@@ -156,10 +156,11 @@ public interface UIManager : PerformanceCounter {
    *
    * @param reactTag tag
    * @param eventName name of the event
-   * @param event parameters
+   * @param event native-backed event parameters; Fabric consumes the payload during dispatch, so it
+   *   must not be reused afterwards
    */
   @Deprecated("", ReplaceWith("receiveEvent(surfaceId, reactTag, eventName, event)"))
-  public fun receiveEvent(reactTag: Int, eventName: String, event: WritableMap?)
+  public fun receiveEvent(reactTag: Int, eventName: String, event: ReadableMap?)
 
   /**
    * This method dispatches events from RN Android code to JS. The delivery of this event will not
@@ -168,9 +169,10 @@ public interface UIManager : PerformanceCounter {
    * @param surfaceId
    * @param reactTag tag
    * @param eventName name of the event
-   * @param event parameters
+   * @param event native-backed event parameters; Fabric consumes the payload during dispatch, so it
+   *   must not be reused afterwards
    */
-  public fun receiveEvent(surfaceId: Int, reactTag: Int, eventName: String, event: WritableMap?)
+  public fun receiveEvent(surfaceId: Int, reactTag: Int, eventName: String, event: ReadableMap?)
 
   /** Resolves Direct Event name exposed to JS from the one known to the Native side. */
   @Deprecated("") public fun resolveCustomDirectEventName(eventName: String): String?
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java
index 2727e880d083..4d43b78a3bbc 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java
@@ -1180,14 +1180,14 @@ public void updateRootLayoutSpecs(
 
   @Deprecated
   @Override
-  public void receiveEvent(int reactTag, String eventName, @Nullable WritableMap params) {
+  public void receiveEvent(int reactTag, String eventName, @Nullable ReadableMap params) {
     receiveEvent(View.NO_ID, reactTag, eventName, false, params, EventCategoryDef.UNSPECIFIED);
   }
 
   @Deprecated
   @Override
   public void receiveEvent(
-      int surfaceId, int reactTag, String eventName, @Nullable WritableMap params) {
+      int surfaceId, int reactTag, String eventName, @Nullable ReadableMap params) {
     receiveEvent(surfaceId, reactTag, eventName, false, params, EventCategoryDef.UNSPECIFIED);
   }
 
@@ -1212,7 +1212,7 @@ public void receiveEvent(
       int reactTag,
       String eventName,
       boolean canCoalesceEvent,
-      @Nullable WritableMap params,
+      @Nullable ReadableMap params,
       @EventCategoryDef int eventCategory) {
     receiveEvent(
         surfaceId,
@@ -1248,7 +1248,7 @@ public void receiveEvent(
       int reactTag,
       String eventName,
       boolean canCoalesceEvent,
-      @Nullable WritableMap params,
+      @Nullable ReadableMap params,
       @EventCategoryDef int eventCategory,
       boolean experimentalIsSynchronous) {
     receiveEvent(
@@ -1284,7 +1284,7 @@ public void receiveEvent(
       int reactTag,
       String eventName,
       boolean canCoalesceEvent,
-      @Nullable WritableMap params,
+      @Nullable ReadableMap params,
       @EventCategoryDef int eventCategory,
       boolean experimentalIsSynchronous,
       long eventTimestamp) {
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/events/EventEmitterWrapper.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/events/EventEmitterWrapper.kt
index 4a61bf606ad9..5c662ba71242 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/events/EventEmitterWrapper.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/events/EventEmitterWrapper.kt
@@ -11,8 +11,8 @@ import android.annotation.SuppressLint
 import com.facebook.jni.HybridClassBase
 import com.facebook.proguard.annotations.DoNotStripAny
 import com.facebook.react.bridge.NativeMap
+import com.facebook.react.bridge.ReadableMap
 import com.facebook.react.bridge.UiThreadUtil
-import com.facebook.react.bridge.WritableMap
 import com.facebook.react.fabric.FabricSoLoader.staticInit
 import com.facebook.react.uimanager.events.EventCategoryDef
 
@@ -46,14 +46,14 @@ internal class EventEmitterWrapper private constructor() : HybridClassBase() {
    * Invokes the execution of the C++ EventEmitter.
    *
    * @param eventName [String] name of the event to execute.
-   * @param params [WritableMap] payload of the event
+   * @param params [ReadableMap] payload of the event
    * @param eventCategory event category
    * @param eventTimestamp timestamp when the event was triggered (in milliseconds since boot)
    */
   @Synchronized
   fun dispatch(
       eventName: String,
-      params: WritableMap?,
+      params: ReadableMap?,
       @EventCategoryDef eventCategory: Int,
       eventTimestamp: Long,
   ) {
@@ -64,7 +64,7 @@ internal class EventEmitterWrapper private constructor() : HybridClassBase() {
   }
 
   @Synchronized
-  fun dispatchEventSynchronously(eventName: String, params: WritableMap?, eventTimestamp: Long) {
+  fun dispatchEventSynchronously(eventName: String, params: ReadableMap?, eventTimestamp: Long) {
     if (!isValid) {
       return
     }
@@ -77,11 +77,11 @@ internal class EventEmitterWrapper private constructor() : HybridClassBase() {
    * target.
    *
    * @param eventName [String] name of the event to execute.
-   * @param params [WritableMap] payload of the event
+   * @param params [ReadableMap] payload of the event
    * @param eventTimestamp timestamp when the event was triggered (in milliseconds since boot)
    */
   @Synchronized
-  fun dispatchUnique(eventName: String, params: WritableMap?, eventTimestamp: Long) {
+  fun dispatchUnique(eventName: String, params: ReadableMap?, eventTimestamp: Long) {
     if (!isValid) {
       return
     }
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/events/FabricEventEmitter.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/events/FabricEventEmitter.kt
index dad9cd3d5556..565e64249144 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/events/FabricEventEmitter.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/events/FabricEventEmitter.kt
@@ -8,7 +8,7 @@
 package com.facebook.react.fabric.events
 
 import android.os.SystemClock
-import com.facebook.react.bridge.WritableMap
+import com.facebook.react.bridge.ReadableMap
 import com.facebook.react.fabric.FabricUIManager
 import com.facebook.react.uimanager.events.EventCategoryDef
 import com.facebook.react.uimanager.events.RCTModernEventEmitter
@@ -22,7 +22,7 @@ internal class FabricEventEmitter(private val uiManager: FabricUIManager) : RCTM
       eventName: String,
       canCoalesceEvent: Boolean,
       customCoalesceKey: Int,
-      params: WritableMap?,
+      params: ReadableMap?,
       @EventCategoryDef category: Int,
   ) {
     receiveEvent(
@@ -43,7 +43,7 @@ internal class FabricEventEmitter(private val uiManager: FabricUIManager) : RCTM
       eventName: String,
       canCoalesceEvent: Boolean,
       customCoalesceKey: Int,
-      params: WritableMap?,
+      params: ReadableMap?,
       @EventCategoryDef category: Int,
       eventTimestamp: Long,
   ) {
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/mounting/MountingManager.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/mounting/MountingManager.kt
index 72b717d243da..87b3dee12e2f 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/mounting/MountingManager.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/mounting/MountingManager.kt
@@ -18,7 +18,6 @@ import com.facebook.react.bridge.ReadableArray
 import com.facebook.react.bridge.ReadableMap
 import com.facebook.react.bridge.RetryableMountingLayerException
 import com.facebook.react.bridge.UiThreadUtil.assertOnUiThread
-import com.facebook.react.bridge.WritableMap
 import com.facebook.react.fabric.events.EventEmitterWrapper
 import com.facebook.react.fabric.mounting.mountitems.MountItem
 import com.facebook.react.touch.JSResponderHandler
@@ -342,7 +341,7 @@ internal class MountingManager(
       reactTag: Int,
       eventName: String,
       canCoalesceEvent: Boolean,
-      params: WritableMap?,
+      params: ReadableMap?,
       @EventCategoryDef eventCategory: Int,
       eventTimestamp: Long,
   ) {
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/mounting/SurfaceMountingManager.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/mounting/SurfaceMountingManager.kt
index 0c8c7bf05502..8053c2a7b0aa 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/mounting/SurfaceMountingManager.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/mounting/SurfaceMountingManager.kt
@@ -1171,7 +1171,7 @@ internal constructor(
       reactTag: Int,
       eventName: String,
       canCoalesceEvent: Boolean,
-      params: WritableMap?,
+      params: ReadableMap?,
       @EventCategoryDef eventCategory: Int,
       eventTimestamp: Long,
   ) {
@@ -1252,7 +1252,7 @@ internal constructor(
 
   private class PendingViewEvent(
       private val eventName: String,
-      private val params: WritableMap?,
+      private val params: ReadableMap?,
       @field:EventCategoryDef private val eventCategory: Int,
       private val canCoalesceEvent: Boolean,
       private val eventTimestamp: Long,
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/interop/InteropEvent.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/interop/InteropEvent.kt
index b4008e1fe064..249eb4ea6ee6 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/interop/InteropEvent.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/interop/InteropEvent.kt
@@ -7,7 +7,7 @@
 
 package com.facebook.react.internal.interop
 
-import com.facebook.react.bridge.WritableMap
+import com.facebook.react.bridge.ReadableMap
 import com.facebook.react.common.annotations.internal.InteropLegacyArchitecture
 import com.facebook.react.common.annotations.internal.LegacyArchitectureLogger
 import com.facebook.react.uimanager.events.Event
@@ -20,14 +20,14 @@ import com.facebook.react.uimanager.events.Event
 @InteropLegacyArchitecture
 internal class InteropEvent(
     @get:JvmName("eventName") val interopEventName: String,
-    @get:JvmName("eventData") val eventData: WritableMap?,
+    @get:JvmName("eventData") val eventData: ReadableMap?,
     surfaceId: Int,
     viewTag: Int,
 ) : Event<InteropEvent>(surfaceId, viewTag) {
 
   override fun getEventName(): String = interopEventName
 
-  override fun getEventData(): WritableMap? = eventData
+  override fun getEventData(): ReadableMap? = eventData
 
   private companion object {
     init {
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/interop/InteropEventEmitter.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/interop/InteropEventEmitter.kt
index a4f2aad529aa..a08bbfc19bce 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/interop/InteropEventEmitter.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/interop/InteropEventEmitter.kt
@@ -10,7 +10,7 @@
 package com.facebook.react.internal.interop
 
 import com.facebook.react.bridge.ReactContext
-import com.facebook.react.bridge.WritableMap
+import com.facebook.react.bridge.ReadableMap
 import com.facebook.react.common.annotations.VisibleForTesting
 import com.facebook.react.common.annotations.internal.InteropLegacyArchitecture
 import com.facebook.react.common.annotations.internal.LegacyArchitectureLogger
@@ -34,7 +34,7 @@ internal class InteropEventEmitter(private val reactContext: ReactContext) : RCT
   private var eventDispatcherOverride: EventDispatcher? = null
 
   @Deprecated("Deprecated in Java")
-  override fun receiveEvent(targetTag: Int, eventName: String, params: WritableMap?) {
+  override fun receiveEvent(targetTag: Int, eventName: String, params: ReadableMap?) {
     val dispatcher = eventDispatcherOverride ?: UIManagerHelper.getEventDispatcher(reactContext)
     val surfaceId = UIManagerHelper.getSurfaceId(reactContext)
     dispatcher?.dispatchEvent(InteropEvent(eventName, params, surfaceId, targetTag))
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.kt
index 245e1a0e29b2..a65277d07edd 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.kt
@@ -551,11 +551,11 @@ public open class UIManagerModule : ReactContextBaseJavaModule, LifecycleEventLi
     return null
   }
 
-  override fun receiveEvent(reactTag: Int, eventName: String, event: WritableMap?) {
+  override fun receiveEvent(reactTag: Int, eventName: String, event: ReadableMap?) {
     receiveEvent(-1, reactTag, eventName, event)
   }
 
-  override fun receiveEvent(surfaceId: Int, reactTag: Int, eventName: String, event: WritableMap?) {
+  override fun receiveEvent(surfaceId: Int, reactTag: Int, eventName: String, event: ReadableMap?) {
     assert(false)
   }
 
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/Event.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/Event.kt
index 0b351afa723a..24e1bd3eaea7 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/Event.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/Event.kt
@@ -9,7 +9,7 @@
 
 package com.facebook.react.uimanager.events
 
-import com.facebook.react.bridge.WritableMap
+import com.facebook.react.bridge.ReadableMap
 import com.facebook.react.common.SystemClock.uptimeMillis
 
 /**
@@ -152,13 +152,13 @@ public abstract class Event<T : Event<T>> {
   }
 
   /** Can be overridden by classes when no custom logic for dispatching is needed. */
-  protected open fun getEventData(): WritableMap? = null
+  protected open fun getEventData(): ReadableMap? = null
 
   /**
    * NOTE: This is a transitional method that allows accessing event data from outside the
    * sublcasses, but inside the package.
    */
-  internal fun internal_getEventData(): WritableMap? = getEventData()
+  internal fun internal_getEventData(): ReadableMap? = getEventData()
 
   protected open fun getEventCategory(): Int = EventCategoryDef.UNSPECIFIED
 
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/RCTEventEmitter.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/RCTEventEmitter.kt
index edfd77430ed3..aa970ee2ccbe 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/RCTEventEmitter.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/RCTEventEmitter.kt
@@ -9,8 +9,8 @@ package com.facebook.react.uimanager.events
 
 import com.facebook.proguard.annotations.DoNotStripAny
 import com.facebook.react.bridge.JavaScriptModule
+import com.facebook.react.bridge.ReadableMap
 import com.facebook.react.bridge.WritableArray
-import com.facebook.react.bridge.WritableMap
 import com.facebook.react.common.annotations.internal.InteropLegacyArchitecture
 
 /**
@@ -28,7 +28,7 @@ public interface RCTEventEmitter : JavaScriptModule {
    * @param params event params
    */
   @Deprecated("Use [RCTModernEventEmitter.receiveEvent] instead")
-  public fun receiveEvent(targetTag: Int, eventName: String, params: WritableMap?)
+  public fun receiveEvent(targetTag: Int, eventName: String, params: ReadableMap?)
 
   @Deprecated("Use [EventDispatcher] to dispatch touch events instead")
   public fun receiveTouches(
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/RCTModernEventEmitter.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/RCTModernEventEmitter.kt
index 2720516397b7..628b5454208a 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/RCTModernEventEmitter.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/RCTModernEventEmitter.kt
@@ -7,7 +7,7 @@
 
 package com.facebook.react.uimanager.events
 
-import com.facebook.react.bridge.WritableMap
+import com.facebook.react.bridge.ReadableMap
 
 /**
  * This is a transitional replacement for [RCTEventEmitter] that works with Fabric and non-Fabric
@@ -17,6 +17,9 @@ import com.facebook.react.bridge.WritableMap
  * This interface will *also* be deleted in the distant future and be replaced with a new interface
  * that doesn't need the old `receiveEvent` method at all. But for the foreseeable future, this is
  * the recommended interface to use for EventEmitters.
+ *
+ * Fabric requires native-backed event payloads and consumes them during dispatch. Callers must not
+ * reuse a payload after passing it to [receiveEvent].
  */
 @Suppress("DEPRECATION")
 public interface RCTModernEventEmitter : RCTEventEmitter {
@@ -24,12 +27,12 @@ public interface RCTModernEventEmitter : RCTEventEmitter {
       "Use RCTModernEventEmitter",
       ReplaceWith("RCTModernEventEmitter.receiveEvent(surfaceId, targetTag, eventName, params)"),
   )
-  override fun receiveEvent(targetTag: Int, eventName: String, params: WritableMap?) {
+  override fun receiveEvent(targetTag: Int, eventName: String, params: ReadableMap?) {
     receiveEvent(-1, targetTag, eventName, params)
   }
 
   @Deprecated("Use the overload with eventTimestamp parameter instead.")
-  public fun receiveEvent(surfaceId: Int, targetTag: Int, eventName: String, params: WritableMap?) {
+  public fun receiveEvent(surfaceId: Int, targetTag: Int, eventName: String, params: ReadableMap?) {
     // We assume this event can't be coalesced. `customCoalesceKey` has no meaning in Fabric.
     receiveEvent(surfaceId, targetTag, eventName, false, 0, params, EventCategoryDef.UNSPECIFIED)
   }
@@ -41,7 +44,7 @@ public interface RCTModernEventEmitter : RCTEventEmitter {
       eventName: String,
       canCoalesceEvent: Boolean,
       customCoalesceKey: Int,
-      params: WritableMap?,
+      params: ReadableMap?,
       @EventCategoryDef category: Int,
   )
 
@@ -58,7 +61,7 @@ public interface RCTModernEventEmitter : RCTEventEmitter {
       eventName: String,
       canCoalesceEvent: Boolean,
       customCoalesceKey: Int,
-      params: WritableMap?,
+      params: ReadableMap?,
       @EventCategoryDef category: Int,
       eventTimestamp: Long,
   ) {
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/SynchronousEventReceiver.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/SynchronousEventReceiver.kt
index 7d6cb6c429bf..27d8dcf20e20 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/SynchronousEventReceiver.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/SynchronousEventReceiver.kt
@@ -7,7 +7,7 @@
 
 package com.facebook.react.uimanager.events
 
-import com.facebook.react.bridge.WritableMap
+import com.facebook.react.bridge.ReadableMap
 import com.facebook.react.common.annotations.UnstableReactNativeAPI
 
 @UnstableReactNativeAPI
@@ -17,7 +17,7 @@ internal interface SynchronousEventReceiver {
       reactTag: Int,
       eventName: String,
       canCoalesceEvent: Boolean,
-      params: WritableMap?,
+      params: ReadableMap?,
       @EventCategoryDef eventCategory: Int,
       experimentalIsSynchronous: Boolean,
   )
@@ -34,7 +34,7 @@ internal interface SynchronousEventReceiver {
       reactTag: Int,
       eventName: String,
       canCoalesceEvent: Boolean,
-      params: WritableMap?,
+      params: ReadableMap?,
       @EventCategoryDef eventCategory: Int,
       experimentalIsSynchronous: Boolean,
       eventTimestamp: Long,
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/TouchesHelper.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/TouchesHelper.kt
index 435ac67afbf6..dd952343b35c 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/TouchesHelper.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/TouchesHelper.kt
@@ -7,9 +7,9 @@
 
 package com.facebook.react.uimanager.events
 
-import com.facebook.react.bridge.Arguments
-import com.facebook.react.bridge.WritableArray
-import com.facebook.react.bridge.WritableMap
+import com.facebook.proguard.annotations.DoNotStrip
+import com.facebook.react.bridge.ReactNativeJNISoLoader
+import com.facebook.react.bridge.ReadableMap
 import com.facebook.react.uimanager.PixelUtil.pxToDp
 import com.facebook.systrace.Systrace
 
@@ -17,28 +17,31 @@ import com.facebook.systrace.Systrace
  * Class responsible for generating catalyst touch events based on android
  * [android.view.MotionEvent].
  */
+@DoNotStrip
 internal object TouchesHelper {
-  @JvmField @Deprecated("Not used in New Architecture") val TARGET_KEY: String = "target"
-
-  private const val TARGET_SURFACE_KEY = "targetSurface"
-  private const val CHANGED_TOUCHES_KEY = "changedTouches"
-  private const val TOUCHES_KEY = "touches"
-  private const val PAGE_X_KEY = "pageX"
-  private const val PAGE_Y_KEY = "pageY"
-  private const val TIMESTAMP_KEY = "timestamp"
-  private const val POINTER_IDENTIFIER_KEY = "identifier"
+  init {
+    ReactNativeJNISoLoader.staticInit()
+  }
 
-  private const val LOCATION_X_KEY = "locationX"
-  private const val LOCATION_Y_KEY = "locationY"
+  // Keep in sync with the field indices in TouchesHelper.cpp.
+  const val PAGE_X_INDEX = 0
+  const val PAGE_Y_INDEX = 1
+  const val LOCATION_X_INDEX = 2
+  const val LOCATION_Y_INDEX = 3
+  const val TARGET_SURFACE_INDEX = 4
+  const val TARGET_INDEX = 5
+  const val TIMESTAMP_INDEX = 6
+  const val IDENTIFIER_INDEX = 7
+  const val POINTER_FIELDS = 8
 
   /**
-   * Creates catalyst pointers array in format that is expected by RCTEventEmitter JS module from
-   * given {@param event} instance. This method use {@param reactTarget} parameter to set as a
-   * target view id associated with current gesture.
+   * Fills the pointer data of [nativeCreateTouchPayload]: for each pointer of the
+   * [android.view.MotionEvent], in order, pageX, pageY, locationX, locationY, targetSurface,
+   * target, timestamp and identifier.
    */
-  private fun createPointersArray(event: TouchEvent): Array<WritableMap?> {
+  private fun createPointerData(event: TouchEvent): DoubleArray {
     val motionEvent = event.getMotionEvent()
-    val touches = arrayOfNulls<WritableMap>(motionEvent.pointerCount)
+    val pointerData = DoubleArray(motionEvent.pointerCount * POINTER_FIELDS)
 
     // Calculate the coordinates for the target view.
     // The MotionEvent contains the X,Y of the touch in the coordinate space of the root view
@@ -51,29 +54,27 @@ internal object TouchesHelper {
     val targetViewCoordinateY = motionEvent.y - event.viewY
 
     for (index in 0 until motionEvent.pointerCount) {
-      val touch = Arguments.createMap()
+      val field = index * POINTER_FIELDS
 
       // pageX,Y values are relative to the RootReactView
       // the motionEvent already contains coordinates in that view
-      touch.putDouble(PAGE_X_KEY, motionEvent.getX(index).pxToDp().toDouble())
-      touch.putDouble(PAGE_Y_KEY, motionEvent.getY(index).pxToDp().toDouble())
+      pointerData[field + PAGE_X_INDEX] = motionEvent.getX(index).pxToDp().toDouble()
+      pointerData[field + PAGE_Y_INDEX] = motionEvent.getY(index).pxToDp().toDouble()
 
       // locationX,Y values are relative to the target view
       // To compute the values for the view, we subtract that views location from the event X,Y
       val locationX = motionEvent.getX(index) - targetViewCoordinateX
       val locationY = motionEvent.getY(index) - targetViewCoordinateY
-      touch.putDouble(LOCATION_X_KEY, locationX.pxToDp().toDouble())
-      touch.putDouble(LOCATION_Y_KEY, locationY.pxToDp().toDouble())
+      pointerData[field + LOCATION_X_INDEX] = locationX.pxToDp().toDouble()
+      pointerData[field + LOCATION_Y_INDEX] = locationY.pxToDp().toDouble()
 
-      touch.putInt(TARGET_SURFACE_KEY, event.surfaceId)
-      @Suppress("DEPRECATION") touch.putInt(TARGET_KEY, event.viewTag)
-      touch.putDouble(TIMESTAMP_KEY, event.timestampMs.toDouble())
-      touch.putDouble(POINTER_IDENTIFIER_KEY, motionEvent.getPointerId(index).toDouble())
-
-      touches[index] = touch
+      pointerData[field + TARGET_SURFACE_INDEX] = event.surfaceId.toDouble()
+      pointerData[field + TARGET_INDEX] = event.viewTag.toDouble()
+      pointerData[field + TIMESTAMP_INDEX] = event.timestampMs.toDouble()
+      pointerData[field + IDENTIFIER_INDEX] = motionEvent.getPointerId(index).toDouble()
     }
 
-    return touches
+    return pointerData
   }
 
   /**
@@ -82,8 +83,9 @@ internal object TouchesHelper {
    * more efficient manner.
    *
    * Touches have to be dispatched as separate events for each changed pointer to make JS process
-   * them correctly. To avoid allocations, we preprocess touch events in Java world and then convert
-   * them to native before dispatch.
+   * them correctly. The pointers are collected once into a [DoubleArray], and each event's payload
+   * is built from it in a single JNI call, instead of putting every value into a native map one by
+   * one.
    *
    * @param eventEmitter emitter to dispatch event to
    * @param event the touch event to extract data from
@@ -95,52 +97,44 @@ internal object TouchesHelper {
         "TouchesHelper.sentTouchEventModern(" + event.getEventName() + ")",
     )
     try {
-      val type = event.getTouchEventType()
       val motionEvent = event.getMotionEvent()
-      var touches = createPointersArray(event)
-      val changedTouches: Array<WritableMap?>?
-
-      when (type) {
+      val pointerCount = motionEvent.pointerCount
+      // Pointers are passed to native as bit masks of their indices.
+      check(pointerCount < Int.SIZE_BITS) { "Too many pointers: $pointerCount" }
+      val allPointers = (1 shl pointerCount) - 1
+      val changedPointers: Int
+      val touchPointers: Int
+
+      when (event.getTouchEventType()) {
         TouchEventType.START -> {
-          val newPointerIndex = motionEvent.actionIndex
-
-          changedTouches = arrayOf(touches[newPointerIndex]?.copy())
+          changedPointers = 1 shl motionEvent.actionIndex
+          touchPointers = allPointers
         }
         TouchEventType.END -> {
-          val finishedPointerIndex = motionEvent.actionIndex
+          changedPointers = 1 shl motionEvent.actionIndex
           /*
-           * Clear finished pointer index for compatibility with W3C touch "end" events, where the
+           * Leave out the finished pointer for compatibility with W3C touch "end" events, where the
            * active touches don't include the set that has just been "ended".
            */
-          val finishedPointer = touches[finishedPointerIndex]
-          touches[finishedPointerIndex] = null
-
-          changedTouches = arrayOf(finishedPointer)
+          touchPointers = allPointers and changedPointers.inv()
         }
         TouchEventType.MOVE -> {
-          changedTouches = arrayOfNulls(touches.size)
-          var i = 0
-          while (i < touches.size) {
-            changedTouches[i] = touches[i]?.copy()
-            i++
-          }
+          changedPointers = allPointers
+          touchPointers = allPointers
         }
         TouchEventType.CANCEL -> {
-          changedTouches = touches
-          touches = arrayOfNulls(0)
+          changedPointers = allPointers
+          touchPointers = 0
         }
       }
 
-      for (touchData in changedTouches) {
+      val pointerData = createPointerData(event)
+      for (pointer in 0 until pointerCount) {
+        if (changedPointers and (1 shl pointer) == 0) {
+          continue
+        }
         val eventData =
-            touchData?.let { td ->
-              val ed = td.copy()
-              val changedTouchesArray = getWritableArray(/* copyObjects */ true, changedTouches)
-              val touchesArray = getWritableArray(/* copyObjects */ true, touches)
-              ed.putArray(CHANGED_TOUCHES_KEY, changedTouchesArray)
-              ed.putArray(TOUCHES_KEY, touchesArray)
-              ed
-            }
+            nativeCreateTouchPayload(pointerData, pointer, changedPointers, touchPointers)
 
         eventEmitter.receiveEvent(
             event.surfaceId,
@@ -158,13 +152,20 @@ internal object TouchesHelper {
     }
   }
 
-  private fun getWritableArray(copyObjects: Boolean, objects: Array<WritableMap?>): WritableArray {
-    val result = Arguments.createArray()
-    for (obj in objects) {
-      if (obj != null) {
-        result.pushMap(if (copyObjects) obj.copy() else obj)
-      }
-    }
-    return result
-  }
+  /**
+   * Creates the payload of a touch event: the fields of pointer [eventPointer] and the
+   * `changedTouches` and `touches` arrays of the pointers whose bits are set in [changedPointers]
+   * and [touchPointers].
+   *
+   * @param pointerData 8 values for each pointer, in order: pageX, pageY, locationX, locationY,
+   *   targetSurface, target, timestamp and identifier.
+   */
+  @DoNotStrip
+  @JvmStatic
+  private external fun nativeCreateTouchPayload(
+      pointerData: DoubleArray,
+      eventPointer: Int,
+      changedPointers: Int,
+      touchPointers: Int,
+  ): ReadableMap
 }
diff --git a/packages/react-native/ReactAndroid/src/main/jni/react/jni/CMakeLists.txt b/packages/react-native/ReactAndroid/src/main/jni/react/jni/CMakeLists.txt
index 5229c2af141a..1b58d0879f3d 100644
--- a/packages/react-native/ReactAndroid/src/main/jni/react/jni/CMakeLists.txt
+++ b/packages/react-native/ReactAndroid/src/main/jni/react/jni/CMakeLists.txt
@@ -32,6 +32,7 @@ add_library(
           OnLoad-common.cpp
           ReadableNativeArray.cpp
           ReadableNativeMap.cpp
+          TouchesHelper.cpp
           TransformHelper.cpp
           WritableNativeArray.cpp
           WritableNativeMap.cpp
diff --git a/packages/react-native/ReactAndroid/src/main/jni/react/jni/OnLoad.cpp b/packages/react-native/ReactAndroid/src/main/jni/react/jni/OnLoad.cpp
index 04ef88c09e98..ba536d2cce35 100644
--- a/packages/react-native/ReactAndroid/src/main/jni/react/jni/OnLoad.cpp
+++ b/packages/react-native/ReactAndroid/src/main/jni/react/jni/OnLoad.cpp
@@ -11,6 +11,7 @@
 #include <fbjni/fbjni.h>
 
 #include "InspectorNetworkRequestListener.h"
+#include "TouchesHelper.h"
 #include "TransformHelper.h"
 
 #ifndef WITH_GLOGINIT
@@ -34,6 +35,7 @@ extern "C" JNIEXPORT jint JNI_OnLoad(JavaVM* vm, void* reserved) {
     FLAGS_minloglevel = 0;
 #endif
     InspectorNetworkRequestListener::registerNatives();
+    TouchesHelper::registerNatives();
     TransformHelper::registerNatives();
   });
 }
diff --git a/packages/react-native/ReactAndroid/src/main/jni/react/jni/TouchesHelper.cpp b/packages/react-native/ReactAndroid/src/main/jni/react/jni/TouchesHelper.cpp
new file mode 100644
index 000000000000..ab23fd8f3d76
--- /dev/null
+++ b/packages/react-native/ReactAndroid/src/main/jni/react/jni/TouchesHelper.cpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#include "TouchesHelper.h"
+
+#include <stdexcept>
+#include <utility>
+
+#include "ReadableNativeMap.h"
+
+using namespace facebook::jni;
+
+namespace facebook::react {
+
+namespace {
+
+// Keep in sync with the field indices in TouchesHelper.kt.
+constexpr jint kPageXIndex = 0;
+constexpr jint kPageYIndex = 1;
+constexpr jint kLocationXIndex = 2;
+constexpr jint kLocationYIndex = 3;
+constexpr jint kTargetSurfaceIndex = 4;
+constexpr jint kTargetIndex = 5;
+constexpr jint kTimestampIndex = 6;
+constexpr jint kIdentifierIndex = 7;
+constexpr jint kPointerFields = 8;
+
+folly::dynamic createTouch(const double* fields) {
+  folly::dynamic touch = folly::dynamic::object();
+  // NOLINTBEGIN(cppcoreguidelines-pro-bounds-pointer-arithmetic)
+  touch.insert("pageX", fields[kPageXIndex]);
+  touch.insert("pageY", fields[kPageYIndex]);
+  touch.insert("locationX", fields[kLocationXIndex]);
+  touch.insert("locationY", fields[kLocationYIndex]);
+  touch.insert("targetSurface", static_cast<int>(fields[kTargetSurfaceIndex]));
+  touch.insert("target", static_cast<int>(fields[kTargetIndex]));
+  touch.insert("timestamp", fields[kTimestampIndex]);
+  touch.insert("identifier", fields[kIdentifierIndex]);
+  // NOLINTEND(cppcoreguidelines-pro-bounds-pointer-arithmetic)
+  return touch;
+}
+
+local_ref<ReadableMap::javaobject> createTouchPayload(
+    alias_ref<jclass> /*unused*/,
+    alias_ref<JArrayDouble> pointerData,
+    jint eventPointer,
+    jint changedPointers,
+    jint touchPointers) {
+  auto length = static_cast<jint>(pointerData->size());
+  jint pointerCount = length / kPointerFields;
+  // Pointers are selected by bits of the jint masks.
+  if (length % kPointerFields != 0 || pointerCount >= 32 || eventPointer < 0 ||
+      eventPointer >= pointerCount) {
+    throw std::invalid_argument("Invalid touch pointer data");
+  }
+  auto values = pointerData->getRegion(0, length);
+
+  folly::dynamic changedTouches = folly::dynamic::array();
+  folly::dynamic touches = folly::dynamic::array();
+  for (jint index = 0; index < pointerCount; index++) {
+    // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
+    const double* fields = values.get() + index * kPointerFields;
+    if ((changedPointers & (1 << index)) != 0) {
+      changedTouches.push_back(createTouch(fields));
+    }
+    if ((touchPointers & (1 << index)) != 0) {
+      touches.push_back(createTouch(fields));
+    }
+  }
+
+  // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
+  auto payload = createTouch(values.get() + eventPointer * kPointerFields);
+  payload.insert("changedTouches", std::move(changedTouches));
+  payload.insert("touches", std::move(touches));
+  // NOLINTBEGIN(cppcoreguidelines-pro-type-reinterpret-cast)
+  return adopt_local(
+      reinterpret_cast<ReadableMap::javaobject>(
+          ReadableNativeMap::createWithContents(std::move(payload)).release()));
+  // NOLINTEND(cppcoreguidelines-pro-type-reinterpret-cast)
+}
+
+} // namespace
+
+void TouchesHelper::registerNatives() {
+  javaClassLocal()->registerNatives({
+      makeNativeMethod("nativeCreateTouchPayload", createTouchPayload),
+  });
+}
+
+} // namespace facebook::react
diff --git a/packages/react-native/ReactAndroid/src/main/jni/react/jni/TouchesHelper.h b/packages/react-native/ReactAndroid/src/main/jni/react/jni/TouchesHelper.h
new file mode 100644
index 000000000000..5037ca0edb56
--- /dev/null
+++ b/packages/react-native/ReactAndroid/src/main/jni/react/jni/TouchesHelper.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#pragma once
+
+#include <fbjni/fbjni.h>
+
+namespace facebook::react {
+
+class TouchesHelper : public jni::JavaClass<TouchesHelper> {
+ public:
+  static auto constexpr *kJavaDescriptor = "Lcom/facebook/react/uimanager/events/TouchesHelper;";
+
+  static void registerNatives();
+};
+
+} // namespace facebook::react
diff --git a/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/bridge/interop/InteropModuleRegistryTest.kt b/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/bridge/interop/InteropModuleRegistryTest.kt
index 5e51cda15d0d..ab759f59b311 100644
--- a/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/bridge/interop/InteropModuleRegistryTest.kt
+++ b/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/bridge/interop/InteropModuleRegistryTest.kt
@@ -11,7 +11,7 @@
 package com.facebook.react.bridge.interop
 
 import com.facebook.react.bridge.JavaScriptModule
-import com.facebook.react.bridge.WritableMap
+import com.facebook.react.bridge.ReadableMap
 import com.facebook.react.common.annotations.UnstableReactNativeAPI
 import com.facebook.react.internal.featureflags.ReactNativeFeatureFlags
 import com.facebook.react.internal.featureflags.ReactNativeFeatureFlagsDefaults
@@ -32,7 +32,7 @@ class InteropModuleRegistryTest {
   @Suppress("DEPRECATION")
   private class FakeRCTEventEmitter : RCTEventEmitter {
     @Deprecated("Use [RCTModernEventEmitter.receiveEvent] instead")
-    override fun receiveEvent(targetTag: Int, eventName: String, params: WritableMap?) = Unit
+    override fun receiveEvent(targetTag: Int, eventName: String, params: ReadableMap?) = Unit
   }
 
   @Before
diff --git a/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/fabric/events/TouchEventDispatchTest.kt b/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/fabric/events/TouchEventDispatchTest.kt
index 00fc7e3489db..20a9e9d9b332 100644
--- a/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/fabric/events/TouchEventDispatchTest.kt
+++ b/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/fabric/events/TouchEventDispatchTest.kt
@@ -15,6 +15,7 @@ import com.facebook.react.bridge.JavaOnlyArray
 import com.facebook.react.bridge.JavaOnlyMap
 import com.facebook.react.bridge.ReactTestHelper
 import com.facebook.react.bridge.ReadableMap
+import com.facebook.react.bridge.ReadableNativeMap
 import com.facebook.react.bridge.WritableMap
 import com.facebook.react.bridge.queue.MessageQueueThread
 import com.facebook.react.bridge.queue.ReactQueueConfiguration
@@ -27,7 +28,11 @@ import com.facebook.react.uimanager.events.TouchEvent
 import com.facebook.react.uimanager.events.TouchEventCoalescingKeyHelper
 import com.facebook.react.uimanager.events.TouchEventType
 import com.facebook.testutils.shadows.ShadowArguments
+import com.facebook.testutils.shadows.ShadowNativeLoader
+import com.facebook.testutils.shadows.ShadowNativeMap
+import com.facebook.testutils.shadows.ShadowReadableNativeMap
 import com.facebook.testutils.shadows.ShadowSoLoader
+import com.facebook.testutils.shadows.ShadowTouchesHelper
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.After
 import org.junit.Before
@@ -41,9 +46,19 @@ import org.mockito.kotlin.verify
 import org.mockito.kotlin.whenever
 import org.robolectric.RobolectricTestRunner
 import org.robolectric.annotation.Config
+import org.robolectric.shadow.api.Shadow
 
 @RunWith(RobolectricTestRunner::class)
-@Config(shadows = [ShadowSoLoader::class, ShadowArguments::class])
+@Config(
+    shadows =
+        [
+            ShadowSoLoader::class,
+            ShadowNativeLoader::class,
+            ShadowArguments::class,
+            ShadowReadableNativeMap::class,
+            ShadowTouchesHelper::class,
+        ],
+)
 class TouchEventDispatchTest {
   private val touchEventCoalescingKeyHelper = TouchEventCoalescingKeyHelper()
 
@@ -546,7 +561,7 @@ class TouchEventDispatchTest {
     for (event in startMoveEndSequence) {
       eventDispatcher.dispatchEvent(event)
     }
-    val argument = ArgumentCaptor.forClass(WritableMap::class.java)
+    val argument = ArgumentCaptor.forClass(ReadableMap::class.java)
     verify(eventEmitter, times(4))
         .receiveEvent(
             anyInt(),
@@ -558,7 +573,7 @@ class TouchEventDispatchTest {
             anyInt(),
             anyLong(),
         )
-    assertThat(startMoveEndExpectedSequence).isEqualTo(argument.allValues)
+    assertThat(startMoveEndExpectedSequence).isEqualTo(argument.payloads())
   }
 
   @Test
@@ -566,7 +581,7 @@ class TouchEventDispatchTest {
     for (event in startMoveCancelSequence) {
       eventDispatcher.dispatchEvent(event)
     }
-    val argument = ArgumentCaptor.forClass(WritableMap::class.java)
+    val argument = ArgumentCaptor.forClass(ReadableMap::class.java)
     verify(eventEmitter, times(6))
         .receiveEvent(
             anyInt(),
@@ -578,7 +593,7 @@ class TouchEventDispatchTest {
             anyInt(),
             anyLong(),
         )
-    assertThat(startMoveCancelExpectedSequence).isEqualTo(argument.allValues)
+    assertThat(startMoveCancelExpectedSequence).isEqualTo(argument.payloads())
   }
 
   @Test
@@ -586,7 +601,7 @@ class TouchEventDispatchTest {
     for (event in startPointerMoveUpSequence) {
       eventDispatcher.dispatchEvent(event)
     }
-    val argument = ArgumentCaptor.forClass(WritableMap::class.java)
+    val argument = ArgumentCaptor.forClass(ReadableMap::class.java)
     verify(eventEmitter, times(6))
         .receiveEvent(
             anyInt(),
@@ -598,7 +613,7 @@ class TouchEventDispatchTest {
             anyInt(),
             anyLong(),
         )
-    assertThat(startPointerMoveUpExpectedSequence).isEqualTo(argument.allValues)
+    assertThat(startPointerMoveUpExpectedSequence).isEqualTo(argument.payloads())
   }
 
   private fun createTouchEvent(
@@ -696,5 +711,13 @@ class TouchEventDispatchTest {
   }
 }
 
+/** The contents of the captured payloads, which are shadowed native maps. */
+private fun ArgumentCaptor<ReadableMap>.payloads(): List<JavaOnlyMap> =
+    allValues.map { payload ->
+      assertThat(payload).isInstanceOf(ReadableNativeMap::class.java)
+      assertThat(payload).isNotInstanceOf(WritableMap::class.java)
+      Shadow.extract<ShadowNativeMap>(payload).backingMap
+    }
+
 private fun IntArray.toPointerProperties(): Array<PointerProperties> =
     this.map { PointerProperties().apply { id = it } }.toTypedArray()
diff --git a/packages/react-native/ReactAndroid/src/test/java/com/facebook/testutils/fakes/FakeUIManager.kt b/packages/react-native/ReactAndroid/src/test/java/com/facebook/testutils/fakes/FakeUIManager.kt
index e1e708edcd1b..0631cc864f07 100644
--- a/packages/react-native/ReactAndroid/src/test/java/com/facebook/testutils/fakes/FakeUIManager.kt
+++ b/packages/react-native/ReactAndroid/src/test/java/com/facebook/testutils/fakes/FakeUIManager.kt
@@ -93,11 +93,11 @@ class FakeUIManager : UIManager, UIBlockViewResolver {
   }
 
   @Deprecated("")
-  override fun receiveEvent(reactTag: Int, eventName: String, event: WritableMap?) {
+  override fun receiveEvent(reactTag: Int, eventName: String, event: ReadableMap?) {
     error("Not yet implemented")
   }
 
-  override fun receiveEvent(surfaceId: Int, reactTag: Int, eventName: String, event: WritableMap?) {
+  override fun receiveEvent(surfaceId: Int, reactTag: Int, eventName: String, event: ReadableMap?) {
     error("Not yet implemented")
   }
 
diff --git a/packages/react-native/ReactAndroid/src/test/java/com/facebook/testutils/shadows/ShadowTouchesHelper.kt b/packages/react-native/ReactAndroid/src/test/java/com/facebook/testutils/shadows/ShadowTouchesHelper.kt
new file mode 100644
index 000000000000..f35f09e0b494
--- /dev/null
+++ b/packages/react-native/ReactAndroid/src/test/java/com/facebook/testutils/shadows/ShadowTouchesHelper.kt
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.testutils.shadows
+
+import com.facebook.react.bridge.JavaOnlyArray
+import com.facebook.react.bridge.JavaOnlyMap
+import com.facebook.react.bridge.ReadableMap
+import com.facebook.react.bridge.ReadableNativeMap
+import com.facebook.react.bridge.WritableMap
+import com.facebook.react.uimanager.events.TouchesHelper
+import org.robolectric.annotation.Implementation
+import org.robolectric.annotation.Implements
+import org.robolectric.shadow.api.Shadow
+
+@Implements(TouchesHelper::class)
+class ShadowTouchesHelper {
+
+  companion object {
+
+    /** Builds the same payload as the native TouchesHelper::createTouchPayload. */
+    @JvmStatic
+    @Implementation
+    fun nativeCreateTouchPayload(
+        pointerData: DoubleArray,
+        eventPointer: Int,
+        changedPointers: Int,
+        touchPointers: Int,
+    ): ReadableMap {
+      val pointerCount = pointerData.size / TouchesHelper.POINTER_FIELDS
+      val changedTouches = JavaOnlyArray()
+      val touches = JavaOnlyArray()
+      for (index in 0 until pointerCount) {
+        if (changedPointers and (1 shl index) != 0) {
+          changedTouches.pushMap(JavaOnlyMap().also { putTouch(it, pointerData, index) })
+        }
+        if (touchPointers and (1 shl index) != 0) {
+          touches.pushMap(JavaOnlyMap().also { putTouch(it, pointerData, index) })
+        }
+      }
+      val payload = JavaOnlyMap()
+      putTouch(payload, pointerData, eventPointer)
+      payload.putArray("changedTouches", changedTouches)
+      payload.putArray("touches", touches)
+      val nativeMap = Shadow.newInstanceOf(ReadableNativeMap::class.java)
+      Shadow.extract<ShadowReadableNativeMap>(nativeMap).backingMap = payload
+      return nativeMap
+    }
+
+    private fun putTouch(touch: WritableMap, pointerData: DoubleArray, index: Int) {
+      val field = index * TouchesHelper.POINTER_FIELDS
+      touch.putDouble("pageX", pointerData[field + TouchesHelper.PAGE_X_INDEX])
+      touch.putDouble("pageY", pointerData[field + TouchesHelper.PAGE_Y_INDEX])
+      touch.putDouble("locationX", pointerData[field + TouchesHelper.LOCATION_X_INDEX])
+      touch.putDouble("locationY", pointerData[field + TouchesHelper.LOCATION_Y_INDEX])
+      touch.putInt("targetSurface", pointerData[field + TouchesHelper.TARGET_SURFACE_INDEX].toInt())
+      touch.putInt("target", pointerData[field + TouchesHelper.TARGET_INDEX].toInt())
+      touch.putDouble("timestamp", pointerData[field + TouchesHelper.TIMESTAMP_INDEX])
+      touch.putDouble("identifier", pointerData[field + TouchesHelper.IDENTIFIER_INDEX])
+    }
+  }
+}
diff --git a/scripts/cxx-api/api-snapshots/ReactAndroidDebugCxx.api b/scripts/cxx-api/api-snapshots/ReactAndroidDebugCxx.api
index ca72d3985fc9..97a6a1f652cc 100644
--- a/scripts/cxx-api/api-snapshots/ReactAndroidDebugCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAndroidDebugCxx.api
@@ -2426,6 +2426,11 @@ class facebook::react::TouchEventEmitter : public facebook::react::EventEmitter
   public void onTouchStart(facebook::react::TouchEvent event) const;
 }
 
+class facebook::react::TouchesHelper : public facebook::jni::JavaClass<facebook::react::TouchesHelper> {
+  public static constexpr auto * kJavaDescriptor;
+  public static void registerNatives();
+}
+
 class facebook::react::TracingDelegate : public facebook::react::jsinspector_modern::HostTargetTracingDelegate {
   public TracingState getTracingState();
   public size_t registerTracingStateListener(facebook::react::TracingStateListener listener);
diff --git a/scripts/cxx-api/api-snapshots/ReactAndroidFrameworksCxx.api b/scripts/cxx-api/api-snapshots/ReactAndroidFrameworksCxx.api
index 5e5dad5f5ce5..4de5fdc97f51 100644
--- a/scripts/cxx-api/api-snapshots/ReactAndroidFrameworksCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAndroidFrameworksCxx.api
@@ -4079,6 +4079,11 @@ class facebook::react::TouchEventEmitter : public facebook::react::EventEmitter
   public void onTouchStart(facebook::react::TouchEvent event) const;
 }
 
+class facebook::react::TouchesHelper : public facebook::jni::JavaClass<facebook::react::TouchesHelper> {
+  public static constexpr auto * kJavaDescriptor;
+  public static void registerNatives();
+}
+
 class facebook::react::TracingDelegate : public facebook::react::jsinspector_modern::HostTargetTracingDelegate {
   public TracingState getTracingState();
   public size_t registerTracingStateListener(facebook::react::TracingStateListener listener);
diff --git a/scripts/cxx-api/api-snapshots/ReactAndroidNewarchCxx.api b/scripts/cxx-api/api-snapshots/ReactAndroidNewarchCxx.api
index 1a105ab8080c..05dc03891252 100644
--- a/scripts/cxx-api/api-snapshots/ReactAndroidNewarchCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAndroidNewarchCxx.api
@@ -2419,6 +2419,11 @@ class facebook::react::TouchEventEmitter : public facebook::react::EventEmitter
   public void onTouchStart(facebook::react::TouchEvent event) const;
 }
 
+class facebook::react::TouchesHelper : public facebook::jni::JavaClass<facebook::react::TouchesHelper> {
+  public static constexpr auto * kJavaDescriptor;
+  public static void registerNatives();
+}
+
 class facebook::react::TracingDelegate : public facebook::react::jsinspector_modern::HostTargetTracingDelegate {
   public TracingState getTracingState();
   public size_t registerTracingStateListener(facebook::react::TracingStateListener listener);
diff --git a/scripts/cxx-api/api-snapshots/ReactAndroidReleaseCxx.api b/scripts/cxx-api/api-snapshots/ReactAndroidReleaseCxx.api
index 1a105ab8080c..05dc03891252 100644
--- a/scripts/cxx-api/api-snapshots/ReactAndroidReleaseCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAndroidReleaseCxx.api
@@ -2419,6 +2419,11 @@ class facebook::react::TouchEventEmitter : public facebook::react::EventEmitter
   public void onTouchStart(facebook::react::TouchEvent event) const;
 }
 
+class facebook::react::TouchesHelper : public facebook::jni::JavaClass<facebook::react::TouchesHelper> {
+  public static constexpr auto * kJavaDescriptor;
+  public static void registerNatives();
+}
+
 class facebook::react::TracingDelegate : public facebook::react::jsinspector_modern::HostTargetTracingDelegate {
   public TracingState getTracingState();
   public size_t registerTracingStateListener(facebook::react::TracingStateListener listener);