diff --git a/types/known/index.d.ts b/types/known/index.d.ts
new file mode 100644
index 0000000000..1ac8005894
--- /dev/null
+++ b/types/known/index.d.ts
@@ -0,0 +1,9 @@
+// Type definitions for known 2.0
+// Project: https://github.com/sindresorhus/known#readme
+// Definitions by: BendingBender <https://github.com/BendingBender>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.2
+
+export = known;
+
+declare function known<T extends object>(object: T): T;
diff --git a/types/known/known-tests.ts b/types/known/known-tests.ts
new file mode 100644
index 0000000000..f07d8ec577
--- /dev/null
+++ b/types/known/known-tests.ts
@@ -0,0 +1,8 @@
+import known = require('known');
+
+const obj = { foo: true };
+
+const obj2 = known(obj);
+
+obj2.foo;
+obj2.bar; // $ExpectError
diff --git a/types/known/tsconfig.json b/types/known/tsconfig.json
new file mode 100644
index 0000000000..8c29c6b462
--- /dev/null
+++ b/types/known/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "known-tests.ts"
+    ]
+}
diff --git a/types/known/tslint.json b/types/known/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/known/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }