diff --git a/android/brave_java_sources.gni b/android/brave_java_sources.gni
index 7e2b152b1ae..4093d353e6c 100644
--- a/android/brave_java_sources.gni
+++ b/android/brave_java_sources.gni
@@ -388,7 +388,6 @@ brave_java_sources = [
   "../../brave/android/java/org/chromium/chrome/browser/shields/CreateCustomFiltersFragment.java",
   "../../brave/android/java/org/chromium/chrome/browser/shields/FilterListServiceFactory.java",
   "../../brave/android/java/org/chromium/chrome/browser/shields/UrlSanitizerServiceFactory.java",
-  "../../brave/android/java/org/chromium/chrome/browser/signin/BraveSigninManager.java",
   "../../brave/android/java/org/chromium/chrome/browser/site_settings/BraveSiteSettingsDelegate.java",
   "../../brave/android/java/org/chromium/chrome/browser/site_settings/BraveWalletEthereumConnectedSites.java",
   "../../brave/android/java/org/chromium/chrome/browser/site_settings/BraveWalletEthereumConnectedSitesListAdapter.java",
diff --git a/browser/signin/services/android/BUILD.gn b/browser/signin/services/android/BUILD.gn
new file mode 100644
index 00000000000..34ee658ef44
--- /dev/null
+++ b/browser/signin/services/android/BUILD.gn
@@ -0,0 +1,25 @@
+#  Copyright (c) 2026 The Brave Authors. All rights reserved.
+#  This Source Code Form is subject to the terms of the Mozilla Public
+#  License, v. 2.0. If a copy of the MPL was not distributed with this file,
+#  You can obtain one at https://mozilla.org/MPL/2.0/.
+
+import("//build/config/android/rules.gni")
+import("//third_party/jni_zero/jni_zero.gni")
+
+generate_jni("jni_headers") {
+  sources = [ "java/src/org/chromium/chrome/browser/signin/services/BraveSigninManager.java" ]
+}
+
+android_library("java") {
+  sources = [ "java/src/org/chromium/chrome/browser/signin/services/BraveSigninManager.java" ]
+  deps = [
+    "//base:base_java",
+    "//chrome/browser/signin/services/android:java",
+    "//components/prefs/android:java",
+    "//components/signin/public/android:java",
+    "//third_party/androidx:androidx_annotation_annotation_java",
+    "//third_party/androidx:androidx_appcompat_appcompat_resources_java",
+    "//third_party/jni_zero:jni_zero_java",
+  ]
+  srcjar_deps = [ ":jni_headers" ]
+}
diff --git a/android/java/org/chromium/chrome/browser/signin/BraveSigninManager.java b/browser/signin/services/android/java/src/org/chromium/chrome/browser/signin/services/BraveSigninManager.java
similarity index 97%
rename from android/java/org/chromium/chrome/browser/signin/BraveSigninManager.java
rename to browser/signin/services/android/java/src/org/chromium/chrome/browser/signin/services/BraveSigninManager.java
index 46490467975..f4171178ee1 100644
--- a/android/java/org/chromium/chrome/browser/signin/BraveSigninManager.java
+++ b/browser/signin/services/android/java/src/org/chromium/chrome/browser/signin/services/BraveSigninManager.java
@@ -3,7 +3,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at https://mozilla.org/MPL/2.0/. */
 
-package org.chromium.chrome.browser.signin;
+package org.chromium.chrome.browser.signin.services;
 
 import androidx.annotation.MainThread;
 
@@ -13,7 +13,6 @@ import org.jni_zero.JniType;
 import org.chromium.base.Callback;
 import org.chromium.build.annotations.NullMarked;
 import org.chromium.build.annotations.Nullable;
-import org.chromium.chrome.browser.signin.services.SigninManager;
 import org.chromium.components.prefs.PrefService;
 import org.chromium.components.signin.base.CoreAccountInfo;
 import org.chromium.components.signin.identitymanager.IdentityManager;
diff --git a/build/android/BUILD.gn b/build/android/BUILD.gn
index 91946361b3d..5cb653cad19 100644
--- a/build/android/BUILD.gn
+++ b/build/android/BUILD.gn
@@ -229,7 +229,6 @@ generate_jni("jni_headers") {
     "//brave/android/java/org/chromium/chrome/browser/informers/BraveSyncAccountDeletedInformer.java",
     "//brave/android/java/org/chromium/chrome/browser/notifications/channels/BraveSiteChannelsManagerBridge.java",
     "//brave/android/java/org/chromium/chrome/browser/preferences/BravePrefServiceBridge.java",
-    "//brave/android/java/org/chromium/chrome/browser/signin/BraveSigninManager.java",
     "//brave/android/java/org/chromium/chrome/browser/util/TabUtils.java",
   ]
 
@@ -239,6 +238,7 @@ generate_jni("jni_headers") {
 
   public_deps = [
     "//brave/android/java/org/chromium/chrome/browser/search_engines:jni_headers",
+    "//brave/browser/signin/services/android:jni_headers",
     "//chrome/android:chrome_jni_headers",
   ]
 }
diff --git a/build/android/config.gni b/build/android/config.gni
index 89bc6e90f33..dc6a1109769 100644
--- a/build/android/config.gni
+++ b/build/android/config.gni
@@ -37,6 +37,7 @@ brave_chrome_java_deps = [
   "//brave/browser/password_entry_edit:public_java",
   "//brave/browser/quick_search_engines/android:java",
   "//brave/browser/safe_browsing/android/java/src/org/chromium/chrome/browser/safe_browsing/settings:java",
+  "//brave/browser/signin/services/android:java",
   "//brave/browser/skus/android:java",
   "//brave/browser/tab_group_sync:java",
   "//brave/browser/ui/android/favicon:java",
diff --git a/chromium_src/chrome/browser/signin/android/signin_manager_android.cc b/chromium_src/chrome/browser/signin/android/signin_manager_android.cc
index 192ca71e51b..90750268c3b 100644
--- a/chromium_src/chrome/browser/signin/android/signin_manager_android.cc
+++ b/chromium_src/chrome/browser/signin/android/signin_manager_android.cc
@@ -11,8 +11,8 @@
 #include "components/signin/public/identity_manager/identity_manager.h"
 
 // Must come after all headers that specialize FromJniType() / ToJniType().
-#include "brave/build/android/jni_headers/BraveSigninManager_jni.h"
-#include "chrome/android/chrome_jni_headers/SigninManagerImpl_jni.h"
+#include "brave/browser/signin/services/android/jni_headers/BraveSigninManager_jni.h"
+#include "chrome/browser/signin/services/android/jni_headers/SigninManagerImpl_jni.h"
 
 namespace {
 // For preventing "unused Java_SigninManager_create method" compile error.