diff --git a/change/react-native-windows-13eb1f66-5cc6-4b45-b6a5-c924e36107c7.json b/change/react-native-windows-13eb1f66-5cc6-4b45-b6a5-c924e36107c7.json
deleted file mode 100644
index 67e73e0b3d9..00000000000
--- a/change/react-native-windows-13eb1f66-5cc6-4b45-b6a5-c924e36107c7.json
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "type": "patch",
-  "comment": "Fix calls to std::mutex::lock",
-  "packageName": "react-native-windows",
-  "email": "vmorozov@microsoft.com",
-  "dependentChangeType": "patch"
-}
diff --git a/packages/@react-native-windows/automation-channel/package.json b/packages/@react-native-windows/automation-channel/package.json
index 7c02abe971e..8ee55aea8e8 100644
--- a/packages/@react-native-windows/automation-channel/package.json
+++ b/packages/@react-native-windows/automation-channel/package.json
@@ -32,7 +32,7 @@
     "prettier": "2.8.8",
     "react": "18.3.1",
     "react-native": "0.75.3",
-    "react-native-windows": "0.75.11",
+    "react-native-windows": "0.75.12",
     "typescript": "5.0.4"
   },
   "files": [
diff --git a/packages/@react-native-windows/tester/package.json b/packages/@react-native-windows/tester/package.json
index 310da8ece88..63d7d66182d 100644
--- a/packages/@react-native-windows/tester/package.json
+++ b/packages/@react-native-windows/tester/package.json
@@ -19,7 +19,7 @@
     "@react-native-picker/picker": "2.4.10",
     "react": "18.3.1",
     "react-native": "^0.75.3",
-    "react-native-windows": "0.75.11",
+    "react-native-windows": "0.75.12",
     "react-native-xaml": "^0.0.78"
   },
   "devDependencies": {
@@ -33,7 +33,7 @@
     "just-scripts": "^1.3.3",
     "react-native": "0.75.3",
     "react-native-platform-override": "^1.9.42",
-    "react-native-windows": "0.75.11",
+    "react-native-windows": "0.75.12",
     "typescript": "5.0.4"
   },
   "engines": {
diff --git a/packages/e2e-test-app-fabric/package.json b/packages/e2e-test-app-fabric/package.json
index 1e6b23f3a2a..e21a433fe4a 100644
--- a/packages/e2e-test-app-fabric/package.json
+++ b/packages/e2e-test-app-fabric/package.json
@@ -21,7 +21,7 @@
     "@typescript-eslint/parser": "^7.1.1",
     "react": "^18.2.0",
     "react-native": "0.75.3",
-    "react-native-windows": "0.75.11"
+    "react-native-windows": "0.75.12"
   },
   "devDependencies": {
     "@babel/core": "^7.20.0",
diff --git a/packages/e2e-test-app/package.json b/packages/e2e-test-app/package.json
index 101d67a9498..5da41df14ed 100644
--- a/packages/e2e-test-app/package.json
+++ b/packages/e2e-test-app/package.json
@@ -21,7 +21,7 @@
     "@typescript-eslint/parser": "^7.1.1",
     "react": "^18.2.0",
     "react-native": "0.75.3",
-    "react-native-windows": "0.75.11",
+    "react-native-windows": "0.75.12",
     "react-native-xaml": "^0.0.78"
   },
   "devDependencies": {
diff --git a/packages/integration-test-app/package.json b/packages/integration-test-app/package.json
index 2e9db5180b3..59f646fa129 100644
--- a/packages/integration-test-app/package.json
+++ b/packages/integration-test-app/package.json
@@ -18,7 +18,7 @@
     "chai": "^4.2.0",
     "react": "^18.2.0",
     "react-native": "0.75.3",
-    "react-native-windows": "0.75.11"
+    "react-native-windows": "0.75.12"
   },
   "devDependencies": {
     "@babel/core": "^7.20.0",
diff --git a/packages/playground/package.json b/packages/playground/package.json
index f9c7ac6240f..bb3126f25d2 100644
--- a/packages/playground/package.json
+++ b/packages/playground/package.json
@@ -17,7 +17,7 @@
     "@typescript-eslint/parser": "^7.1.1",
     "react": "^18.2.0",
     "react-native": "0.75.3",
-    "react-native-windows": "0.75.11"
+    "react-native-windows": "0.75.12"
   },
   "devDependencies": {
     "@babel/core": "^7.20.0",
diff --git a/packages/sample-app-fabric/package.json b/packages/sample-app-fabric/package.json
index adb7354057a..80e67a75f1d 100644
--- a/packages/sample-app-fabric/package.json
+++ b/packages/sample-app-fabric/package.json
@@ -17,7 +17,7 @@
     "@typescript-eslint/parser": "^7.1.1",
     "react": "^18.2.0",
     "react-native": "0.75.3",
-    "react-native-windows": "0.75.11"
+    "react-native-windows": "0.75.12"
   },
   "devDependencies": {
     "@babel/core": "^7.20.0",
diff --git a/packages/sample-apps/package.json b/packages/sample-apps/package.json
index 0b892fa21d4..aef2b74fd2a 100644
--- a/packages/sample-apps/package.json
+++ b/packages/sample-apps/package.json
@@ -17,7 +17,7 @@
     "@typescript-eslint/parser": "^7.1.1",
     "react": "^18.2.0",
     "react-native": "0.75.3",
-    "react-native-windows": "0.75.11"
+    "react-native-windows": "0.75.12"
   },
   "devDependencies": {
     "@babel/core": "^7.20.0",
diff --git a/vnext/CHANGELOG.json b/vnext/CHANGELOG.json
index 6b89ab546dc..8c3ac0f1cd7 100644
--- a/vnext/CHANGELOG.json
+++ b/vnext/CHANGELOG.json
@@ -1,6 +1,21 @@
 {
   "name": "react-native-windows",
   "entries": [
+    {
+      "date": "Mon, 13 Jan 2025 16:29:07 GMT",
+      "version": "0.75.12",
+      "tag": "react-native-windows_v0.75.12",
+      "comments": {
+        "patch": [
+          {
+            "author": "vmorozov@microsoft.com",
+            "package": "react-native-windows",
+            "commit": "967b1946186e65231d24d0fdb57d41382dcb3c8a",
+            "comment": "Fix calls to std::mutex::lock"
+          }
+        ]
+      }
+    },
     {
       "date": "Mon, 16 Dec 2024 16:30:59 GMT",
       "version": "0.75.11",
diff --git a/vnext/CHANGELOG.md b/vnext/CHANGELOG.md
index 7e610ded52c..1755d5cd0fd 100644
--- a/vnext/CHANGELOG.md
+++ b/vnext/CHANGELOG.md
@@ -1,9 +1,17 @@
 # Change Log - react-native-windows
 
-This log was last generated on Mon, 16 Dec 2024 16:30:59 GMT and should not be manually modified.
+This log was last generated on Mon, 13 Jan 2025 16:29:07 GMT and should not be manually modified.
 
 <!-- Start content -->
 
+## 0.75.12
+
+Mon, 13 Jan 2025 16:29:07 GMT
+
+### Patches
+
+- Fix calls to std::mutex::lock (vmorozov@microsoft.com)
+
 ## 0.75.11
 
 Mon, 16 Dec 2024 16:30:59 GMT
diff --git a/vnext/PropertySheets/Generated/PackageVersion.g.props b/vnext/PropertySheets/Generated/PackageVersion.g.props
index e37680616ec..59691cbd39a 100644
--- a/vnext/PropertySheets/Generated/PackageVersion.g.props
+++ b/vnext/PropertySheets/Generated/PackageVersion.g.props
@@ -10,11 +10,11 @@
 -->
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
-    <ReactNativeWindowsVersion>0.75.11</ReactNativeWindowsVersion>
+    <ReactNativeWindowsVersion>0.75.12</ReactNativeWindowsVersion>
     <ReactNativeWindowsMajor>0</ReactNativeWindowsMajor>
     <ReactNativeWindowsMinor>75</ReactNativeWindowsMinor>
-    <ReactNativeWindowsPatch>11</ReactNativeWindowsPatch>
+    <ReactNativeWindowsPatch>12</ReactNativeWindowsPatch>
     <ReactNativeWindowsCanary>false</ReactNativeWindowsCanary>
-    <ReactNativeWindowsCommitId>7f93b5eda92397d91427e5a64f764846692edfa6</ReactNativeWindowsCommitId>
+    <ReactNativeWindowsCommitId>967b1946186e65231d24d0fdb57d41382dcb3c8a</ReactNativeWindowsCommitId>
   </PropertyGroup>
 </Project>
\ No newline at end of file
diff --git a/vnext/package.json b/vnext/package.json
index ab295c61615..cc9b5506c98 100644
--- a/vnext/package.json
+++ b/vnext/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-native-windows",
-  "version": "0.75.11",
+  "version": "0.75.12",
   "license": "MIT",
   "repository": {
     "type": "git",