diff --git a/packages/react-native/ReactAndroid/api/ReactAndroid.api b/packages/react-native/ReactAndroid/api/ReactAndroid.api
index 79fc6198a3301a..c0294c6d8e4287 100644
--- a/packages/react-native/ReactAndroid/api/ReactAndroid.api
+++ b/packages/react-native/ReactAndroid/api/ReactAndroid.api
@@ -68,10 +68,11 @@ public class com/facebook/react/MemoryPressureRouter : android/content/Component
 	public fun removeMemoryPressureListener (Lcom/facebook/react/bridge/MemoryPressureListener;)V
 }
 
-public class com/facebook/react/NativeModuleRegistryBuilder {
+public final class com/facebook/react/NativeModuleRegistryBuilder {
+	public fun <init> (Lcom/facebook/react/bridge/ReactApplicationContext;)V
 	public fun <init> (Lcom/facebook/react/bridge/ReactApplicationContext;Lcom/facebook/react/ReactInstanceManager;)V
-	public fun build ()Lcom/facebook/react/bridge/NativeModuleRegistry;
-	public fun processPackage (Lcom/facebook/react/ReactPackage;)V
+	public final fun build ()Lcom/facebook/react/bridge/NativeModuleRegistry;
+	public final fun processPackage (Lcom/facebook/react/ReactPackage;)V
 }
 
 public abstract class com/facebook/react/ReactActivity : androidx/appcompat/app/AppCompatActivity, com/facebook/react/modules/core/DefaultHardwareBackBtnHandler, com/facebook/react/modules/core/PermissionAwareActivity {
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/NativeModuleRegistryBuilder.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/NativeModuleRegistryBuilder.java
deleted file mode 100644
index a33bc6e732b563..00000000000000
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/NativeModuleRegistryBuilder.java
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * 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.react;
-
-import com.facebook.react.bridge.ModuleHolder;
-import com.facebook.react.bridge.NativeModuleRegistry;
-import com.facebook.react.bridge.ReactApplicationContext;
-import java.util.HashMap;
-import java.util.Map;
-
-/** Helper class to build NativeModuleRegistry. */
-public class NativeModuleRegistryBuilder {
-
-  private final ReactApplicationContext mReactApplicationContext;
-
-  private final Map<String, ModuleHolder> mModules = new HashMap<>();
-
-  public NativeModuleRegistryBuilder(
-      ReactApplicationContext reactApplicationContext, ReactInstanceManager reactInstanceManager) {
-    mReactApplicationContext = reactApplicationContext;
-  }
-
-  public void processPackage(ReactPackage reactPackage) {
-    // We use an iterable instead of an iterator here to ensure thread safety, and that this list
-    // cannot be modified
-    Iterable<ModuleHolder> moduleHolders;
-    if (reactPackage instanceof LazyReactPackage) {
-      moduleHolders =
-          ((LazyReactPackage) reactPackage).getNativeModuleIterator(mReactApplicationContext);
-    } else if (reactPackage instanceof BaseReactPackage) {
-      moduleHolders =
-          ((BaseReactPackage) reactPackage).getNativeModuleIterator(mReactApplicationContext);
-    } else {
-      moduleHolders =
-          ReactPackageHelper.getNativeModuleIterator(reactPackage, mReactApplicationContext);
-    }
-
-    for (ModuleHolder moduleHolder : moduleHolders) {
-      String name = moduleHolder.getName();
-      if (mModules.containsKey(name)) {
-        ModuleHolder existingNativeModule = mModules.get(name);
-        if (!moduleHolder.getCanOverrideExistingModule()) {
-          throw new IllegalStateException(
-              "Native module "
-                  + name
-                  + " tried to override "
-                  + existingNativeModule.getClassName()
-                  + ". Check the getPackages() method in MainApplication.java, it might be that"
-                  + " module is being created twice. If this was your intention, set"
-                  + " canOverrideExistingModule=true. This error may also be present if the package"
-                  + " is present only once in getPackages() but is also automatically added later"
-                  + " during build time by autolinking. Try removing the existing entry and"
-                  + " rebuild.");
-        }
-        mModules.remove(existingNativeModule);
-      }
-      mModules.put(name, moduleHolder);
-    }
-  }
-
-  public NativeModuleRegistry build() {
-    return new NativeModuleRegistry(mReactApplicationContext, mModules);
-  }
-}
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/NativeModuleRegistryBuilder.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/NativeModuleRegistryBuilder.kt
new file mode 100644
index 00000000000000..b50070c3d175a8
--- /dev/null
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/NativeModuleRegistryBuilder.kt
@@ -0,0 +1,61 @@
+/*
+ * 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.react
+
+import com.facebook.react.bridge.ModuleHolder
+import com.facebook.react.bridge.NativeModuleRegistry
+import com.facebook.react.bridge.ReactApplicationContext
+
+/** Helper class to build NativeModuleRegistry. */
+public class NativeModuleRegistryBuilder(
+    private val reactApplicationContext: ReactApplicationContext,
+) {
+
+  private val modules = HashMap<String, ModuleHolder>()
+
+  @Deprecated(
+      "ReactInstanceManager is not used",
+      ReplaceWith("NativeModuleRegistryBuilder(reactApplicationContext)"))
+  public constructor(
+      reactApplicationContext: ReactApplicationContext,
+      @Suppress("UNUSED_PARAMETER") reactInstanceManager: ReactInstanceManager
+  ) : this(reactApplicationContext) {}
+
+  public fun processPackage(reactPackage: ReactPackage) {
+    // We use an iterable instead of an iterator here to ensure thread safety, and that this list
+    // cannot be modified
+    val moduleHolders =
+        @Suppress("DEPRECATION")
+        if (reactPackage is LazyReactPackage) {
+          reactPackage.getNativeModuleIterator(reactApplicationContext)
+        } else if (reactPackage is BaseReactPackage) {
+          reactPackage.getNativeModuleIterator(reactApplicationContext)
+        } else {
+          ReactPackageHelper.getNativeModuleIterator(reactPackage, reactApplicationContext)
+        }
+    for (moduleHolder in moduleHolders) {
+      val name = moduleHolder.name
+      val existingNativeModule = modules[name]
+      if (existingNativeModule != null) {
+        check(moduleHolder.canOverrideExistingModule) {
+          """
+Native module $name tried to override ${existingNativeModule.className}.
+
+Check the getPackages() method in MainApplication.java, it might be that module is being created twice. 
+If this was your intention, set canOverrideExistingModule=true. This error may also be present if the 
+package is present only once in getPackages() but is also automatically added later during build time 
+by autolinking. Try removing the existing entry and rebuild.
+"""
+        }
+      }
+      modules[name] = moduleHolder
+    }
+  }
+
+  public fun build(): NativeModuleRegistry = NativeModuleRegistry(reactApplicationContext, modules)
+}
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java
index dc07b2bfaaf093..1ba517b3075851 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java
@@ -1536,7 +1536,7 @@ private ReactApplicationContext createReactContext(
   private NativeModuleRegistry processPackages(
       ReactApplicationContext reactContext, List<ReactPackage> packages) {
     NativeModuleRegistryBuilder nativeModuleRegistryBuilder =
-        new NativeModuleRegistryBuilder(reactContext, this);
+        new NativeModuleRegistryBuilder(reactContext);
 
     ReactMarker.logMarker(PROCESS_PACKAGES_START);