diff --git a/packages/react-native/ReactAndroid/build.gradle.kts b/packages/react-native/ReactAndroid/build.gradle.kts
index d40a1cb2c2f..82bd50ca6a9 100644
--- a/packages/react-native/ReactAndroid/build.gradle.kts
+++ b/packages/react-native/ReactAndroid/build.gradle.kts
@@ -118,8 +118,6 @@ val preparePrefab by
               PrefabPreprocessingEntry("jsi", Pair("../ReactCommon/jsi/", "")),
               PrefabPreprocessingEntry(
                   "fabricjni", Pair("src/main/jni/react/fabric", "react/fabric/")),
-              PrefabPreprocessingEntry(
-                  "mapbufferjni", Pair("src/main/jni/react/mapbuffer", "react/mapbuffer/")),
               PrefabPreprocessingEntry(
                   "react_render_mapbuffer",
                   Pair("../ReactCommon/react/renderer/mapbuffer/", "react/renderer/mapbuffer/")),
@@ -239,6 +237,8 @@ val preparePrefab by
                   listOf(
                       // glog
                       Pair(File(buildDir, "third-party-ndk/glog/exported/").absolutePath, ""),
+                      // mapbufferjni
+                      Pair("src/main/jni/react/mapbuffer", "react/mapbuffer/"),
                       // turbomodulejsijni
                       Pair("src/main/jni/react/turbomodule", ""),
                       // react_codegen_rncore
@@ -632,7 +632,6 @@ android {
             "rrc_root",
             "jsi",
             "fabricjni",
-            "mapbufferjni",
             "react_render_mapbuffer",
             "react_render_textlayoutmanager",
             "yoga",
@@ -748,7 +747,6 @@ android {
     create("rrc_root") { headers = File(prefabHeadersDir, "rrc_root").absolutePath }
     create("jsi") { headers = File(prefabHeadersDir, "jsi").absolutePath }
     create("fabricjni") { headers = File(prefabHeadersDir, "fabricjni").absolutePath }
-    create("mapbufferjni") { headers = File(prefabHeadersDir, "mapbufferjni").absolutePath }
     create("react_render_mapbuffer") {
       headers = File(prefabHeadersDir, "react_render_mapbuffer").absolutePath
     }
diff --git a/packages/react-native/ReactAndroid/cmake-utils/ReactNative-application.cmake b/packages/react-native/ReactAndroid/cmake-utils/ReactNative-application.cmake
index 87684b25c76..d86165cedfb 100644
--- a/packages/react-native/ReactAndroid/cmake-utils/ReactNative-application.cmake
+++ b/packages/react-native/ReactAndroid/cmake-utils/ReactNative-application.cmake
@@ -66,7 +66,6 @@ target_compile_options(${CMAKE_PROJECT_NAME}
 find_package(ReactAndroid REQUIRED CONFIG)
 add_library(fabricjni ALIAS ReactAndroid::fabricjni)
 add_library(jsi ALIAS ReactAndroid::jsi)
-add_library(mapbufferjni ALIAS ReactAndroid::mapbufferjni)
 add_library(react_render_mapbuffer ALIAS ReactAndroid::react_render_mapbuffer)
 add_library(react_render_textlayoutmanager ALIAS ReactAndroid::react_render_textlayoutmanager)
 add_library(reactnative ALIAS ReactAndroid::reactnative)
@@ -78,7 +77,6 @@ add_library(fbjni ALIAS fbjni::fbjni)
 
 target_link_libraries(${CMAKE_PROJECT_NAME}
         fabricjni                           # prefab ready
-        mapbufferjni                        # prefab ready
         fbjni                               # via 3rd party prefab
         jsi                                 # prefab ready
         reactnative                         # prefab ready
diff --git a/packages/react-native/ReactAndroid/src/main/jni/CMakeLists.txt b/packages/react-native/ReactAndroid/src/main/jni/CMakeLists.txt
index f74fa8f6bac..38534172ace 100644
--- a/packages/react-native/ReactAndroid/src/main/jni/CMakeLists.txt
+++ b/packages/react-native/ReactAndroid/src/main/jni/CMakeLists.txt
@@ -153,6 +153,7 @@ add_library(reactnative
           OnLoad.cpp
           $<TARGET_OBJECTS:jni_lib_merge_glue>
           $<TARGET_OBJECTS:logger>
+          $<TARGET_OBJECTS:mapbufferjni>
           $<TARGET_OBJECTS:react_bridging>
           $<TARGET_OBJECTS:react_codegen_rncore>
           $<TARGET_OBJECTS:react_debug>
@@ -199,12 +200,12 @@ target_link_libraries(reactnative PUBLIC
         glog
         jsi
         log
-        mapbufferjni
         reactnativejni
         yoga
 )
 target_include_directories(reactnative
         PUBLIC
+        $<TARGET_PROPERTY:mapbufferjni,INTERFACE_INCLUDE_DIRECTORIES>
         $<TARGET_PROPERTY:react_bridging,INTERFACE_INCLUDE_DIRECTORIES>
         $<TARGET_PROPERTY:react_codegen_rncore,INTERFACE_INCLUDE_DIRECTORIES>
         $<TARGET_PROPERTY:react_debug,INTERFACE_INCLUDE_DIRECTORIES>
@@ -307,6 +308,7 @@ add_executable(reactnative_unittest
   hermes-engine::libhermes
   hermes_inspector_modern
   jsi
+  mapbufferjni
   react_cxxreact
   react_codegen_rncore
   react_debug
diff --git a/packages/react-native/ReactAndroid/src/main/jni/react/mapbuffer/CMakeLists.txt b/packages/react-native/ReactAndroid/src/main/jni/react/mapbuffer/CMakeLists.txt
index 2694a9cd067..cb28dee202a 100644
--- a/packages/react-native/ReactAndroid/src/main/jni/react/mapbuffer/CMakeLists.txt
+++ b/packages/react-native/ReactAndroid/src/main/jni/react/mapbuffer/CMakeLists.txt
@@ -6,12 +6,14 @@
 cmake_minimum_required(VERSION 3.13)
 set(CMAKE_VERBOSE_MAKEFILE on)
 
+include(${REACT_ANDROID_DIR}/src/main/jni/first-party/jni-lib-merge/SoMerging-utils.cmake)
+
 add_compile_options(-fexceptions -frtti -std=c++20 -Wall -DLOG_TAG=\"Fabric\")
 
 file(GLOB mapbuffer_SRC CONFIGURE_DEPENDS
         ${CMAKE_CURRENT_SOURCE_DIR}/react/common/mapbuffer/*.cpp)
 
-add_library(mapbufferjni SHARED ${mapbuffer_SRC})
+add_library(mapbufferjni OBJECT ${mapbuffer_SRC})
 
 target_include_directories(mapbufferjni
         PUBLIC
@@ -20,6 +22,8 @@ target_include_directories(mapbufferjni
           ${CMAKE_CURRENT_SOURCE_DIR}/react/common/mapbuffer/
 )
 
+target_merge_so(mapbufferjni)
+
 target_link_libraries(mapbufferjni
         fb
         fbjni
diff --git a/packages/react-native/sdks/ossonly-soloader/src/main/java/com/facebook/soloader/MergedSoMapping.kt b/packages/react-native/sdks/ossonly-soloader/src/main/java/com/facebook/soloader/MergedSoMapping.kt
index 597a65641ec..5659472bb7f 100644
--- a/packages/react-native/sdks/ossonly-soloader/src/main/java/com/facebook/soloader/MergedSoMapping.kt
+++ b/packages/react-native/sdks/ossonly-soloader/src/main/java/com/facebook/soloader/MergedSoMapping.kt
@@ -21,16 +21,21 @@ public object MergedSoMapping {
   public fun mapLibName(input: String): String =
       when (input) {
         "react_newarchdefaults" -> "reactnative"
+        "mapbufferjni" -> "reactnative"
         else -> input
       }
 
   public fun invokeJniOnload(libraryName: String): Unit {
     when (libraryName) {
       "react_newarchdefaults" -> libreact_newarchdefaults_so()
+      "mapbufferjni" -> libmapbufferjni_so()
+      "reactnative" -> libreactnative_so()
     }
   }
 
   public external fun libreact_newarchdefaults_so(): Int
 
+  public external fun libmapbufferjni_so(): Int
+
   public external fun libreactnative_so(): Int
 }