diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/LayoutDirectionUtil.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/LayoutDirectionUtil.kt
index 26cee0103ac..8f166d00247 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/LayoutDirectionUtil.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/LayoutDirectionUtil.kt
@@ -14,6 +14,9 @@ import com.facebook.react.common.annotations.internal.LegacyArchitectureLogger
 import com.facebook.yoga.YogaDirection
 
 @LegacyArchitecture(logLevel = LegacyArchitectureLogLevel.ERROR)
+@Deprecated(
+    message = "This class is part of Legacy Architecture and will be removed in a future release",
+    level = DeprecationLevel.WARNING)
 internal object LayoutDirectionUtil {
   init {
     LegacyArchitectureLogger.assertLegacyArchitecture(
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/NativeKind.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/NativeKind.kt
index d4d58c60500..6239afe99df 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/NativeKind.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/NativeKind.kt
@@ -14,6 +14,9 @@ import com.facebook.react.common.annotations.internal.LegacyArchitectureLogLevel
 //   - `kind == PARENT` checks whether the node can host children in the native tree.
 //   - `kind != NONE` checks whether the node appears in the native tree.
 @LegacyArchitecture(logLevel = LegacyArchitectureLogLevel.ERROR)
+@Deprecated(
+    message = "This class is part of Legacy Architecture and will be removed in a future release",
+    level = DeprecationLevel.WARNING)
 internal enum class NativeKind {
   // Node is in the native hierarchy and the HierarchyOptimizer should assume it can host children
   // (e.g. because it's a ViewGroup). Note that it's okay if the node doesn't support children. When
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/NoSuchNativeViewException.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/NoSuchNativeViewException.kt
index d4a4c41867a..998d488c60e 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/NoSuchNativeViewException.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/NoSuchNativeViewException.kt
@@ -16,6 +16,9 @@ import com.facebook.react.common.annotations.internal.LegacyArchitectureLogger
  * associated with it.
  */
 @LegacyArchitecture(logLevel = LegacyArchitectureLogLevel.ERROR)
+@Deprecated(
+    message = "This class is part of Legacy Architecture and will be removed in a future release",
+    level = DeprecationLevel.WARNING)
 internal class NoSuchNativeViewException(detailMessage: String) :
     IllegalViewOperationException(detailMessage) {
 
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/OnLayoutEvent.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/OnLayoutEvent.kt
index e64baa879d3..00a77c8d893 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/OnLayoutEvent.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/OnLayoutEvent.kt
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+@file:Suppress("DEPRECATION")
+
 package com.facebook.react.uimanager
 
 import androidx.core.util.Pools.SynchronizedPool
@@ -20,6 +22,9 @@ import com.facebook.react.uimanager.events.Event
 
 /** Event used to notify JS component about changes of its position or dimensions. */
 @LegacyArchitecture(logLevel = LegacyArchitectureLogLevel.WARNING)
+@Deprecated(
+    message = "This class is part of Legacy Architecture and will be removed in a future release",
+    level = DeprecationLevel.WARNING)
 public class OnLayoutEvent private constructor() : Event<OnLayoutEvent>() {
   @VisibleForTesting internal var x: Int = 0
   @VisibleForTesting internal var y: Int = 0
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ShadowNodeRegistry.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ShadowNodeRegistry.kt
index 6acd313d4a8..9ef142d22b9 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ShadowNodeRegistry.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ShadowNodeRegistry.kt
@@ -20,6 +20,9 @@ import com.facebook.react.common.annotations.internal.LegacyArchitectureLogger
  * UIManagerModule instance.
  */
 @LegacyArchitecture(logLevel = LegacyArchitectureLogLevel.ERROR)
+@Deprecated(
+    message = "This class is part of Legacy Architecture and will be removed in a future release",
+    level = DeprecationLevel.WARNING)
 internal class ShadowNodeRegistry {
   private val tagsToCSSNodes = SparseArray<ReactShadowNode<*>>()
   private val rootTags = SparseBooleanArray()
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ViewAtIndex.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ViewAtIndex.kt
index ad32dff3e94..64955b56fc0 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ViewAtIndex.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ViewAtIndex.kt
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+@file:Suppress("DEPRECATION")
+
 package com.facebook.react.uimanager
 
 import com.facebook.react.common.annotations.internal.LegacyArchitecture
@@ -17,6 +19,9 @@ import java.util.Objects
  * operation.
  */
 @LegacyArchitecture(logLevel = LegacyArchitectureLogLevel.ERROR)
+@Deprecated(
+    message = "This class is part of Legacy Architecture and will be removed in a future release",
+    level = DeprecationLevel.WARNING)
 internal class ViewAtIndex(
     @Suppress("NoHungarianNotation") @JvmField public val mTag: Int,
     @Suppress("NoHungarianNotation") @JvmField public val mIndex: Int
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/YogaNodePool.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/YogaNodePool.kt
index dd6b9094068..42711b1330f 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/YogaNodePool.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/YogaNodePool.kt
@@ -15,6 +15,9 @@ import com.facebook.yoga.YogaNode
 
 /** Static holder for a recycling pool of YogaNodes. */
 @LegacyArchitecture(logLevel = LegacyArchitectureLogLevel.ERROR)
+@Deprecated(
+    message = "This class is part of Legacy Architecture and will be removed in a future release",
+    level = DeprecationLevel.WARNING)
 internal object YogaNodePool {
   init {
     LegacyArchitectureLogger.assertLegacyArchitecture(
diff --git a/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/uimanager/OnLayoutEventTest.kt b/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/uimanager/OnLayoutEventTest.kt
index 4c49c972c43..e880bfb5c3b 100644
--- a/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/uimanager/OnLayoutEventTest.kt
+++ b/packages/react-native/ReactAndroid/src/test/java/com/facebook/react/uimanager/OnLayoutEventTest.kt
@@ -31,6 +31,7 @@ class OnLayoutEventTest {
     val width = 100
     val height = 200
 
+    @Suppress("DEPRECATION")
     val event = OnLayoutEvent.obtain(surfaceId, viewTag, x, y, width, height)
 
     assertThat(event).isNotNull
@@ -43,14 +44,14 @@ class OnLayoutEventTest {
 
   @Test
   fun testGetEventName_shouldReturnCorrectEventName() {
-    val event = OnLayoutEvent.obtain(1, 1, 10, 20, 100, 200)
+    @Suppress("DEPRECATION") val event = OnLayoutEvent.obtain(1, 1, 10, 20, 100, 200)
 
     assertThat(event.getEventName()).isEqualTo("topLayout")
   }
 
   @Test
   fun testInit_shouldCorrectlyInitializeValues() {
-    val event = OnLayoutEvent.obtain(1, 1, 10, 20, 100, 200)
+    @Suppress("DEPRECATION") val event = OnLayoutEvent.obtain(1, 1, 10, 20, 100, 200)
 
     assertThat(event.surfaceId).isEqualTo(1)
     assertThat(event.viewTag).isEqualTo(1)