diff --git a/types/rwlock/index.d.ts b/types/rwlock/index.d.ts
new file mode 100644
index 0000000000..a7611f22da
--- /dev/null
+++ b/types/rwlock/index.d.ts
@@ -0,0 +1,30 @@
+// Type definitions for RWLock v5.0.0
+// Project: https://github.com/71104/rwlock
+// Definitions by: Federico Caselli <https://github.com/CaselIT/typings-rwlock>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare class ReadWriteGeneric<T> {
+  readLock(callback: T, options?: ReadWriteLock.Options): void;
+  readLock(key: string, callback: T, options?: ReadWriteLock.Options): void;
+  writeLock(callback: T, options?: ReadWriteLock.Options): void;
+  writeLock(key: string, callback: T, options?: ReadWriteLock.Options): void;
+}
+declare namespace ReadWriteLock {
+  type Release = () => void;
+
+  type Callback = (release: Release) => void;
+
+  type AsyncCallback = (err: Error, release: Release) => void;
+
+  interface Options {
+    scope?: any;
+    timeout?: number;
+    timeoutCallback(): void;
+  }
+}
+
+declare class ReadWriteLock extends ReadWriteGeneric<ReadWriteLock.Callback> {
+  constructor();
+  async: ReadWriteGeneric<ReadWriteLock.AsyncCallback>;
+}
+export = ReadWriteLock;
diff --git a/types/rwlock/rwlock-tests.ts b/types/rwlock/rwlock-tests.ts
new file mode 100644
index 0000000000..8e2f210164
--- /dev/null
+++ b/types/rwlock/rwlock-tests.ts
@@ -0,0 +1,7 @@
+// Original test file https://github.com/71104/rwlock/blob/master/test/all.js
+import * as ReadWriteLock from 'rwlock';
+
+const lock = new ReadWriteLock();
+lock.readLock((release) => {
+  release();
+});
diff --git a/types/rwlock/tsconfig.json b/types/rwlock/tsconfig.json
new file mode 100644
index 0000000000..d5eefd893d
--- /dev/null
+++ b/types/rwlock/tsconfig.json
@@ -0,0 +1,22 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "rwlock-tests.ts"
+    ]
+}
\ No newline at end of file
diff --git a/types/rwlock/tslint.json b/types/rwlock/tslint.json
new file mode 100644
index 0000000000..377cc837d4
--- /dev/null
+++ b/types/rwlock/tslint.json
@@ -0,0 +1 @@
+{ "extends": "../tslint.json" }