diff --git a/types/wcwidth/index.d.ts b/types/wcwidth/index.d.ts
new file mode 100644
index 0000000000..da9920a611
--- /dev/null
+++ b/types/wcwidth/index.d.ts
@@ -0,0 +1,8 @@
+// Type definitions for wcwidth 1.0
+// Project: https://github.com/timoxley/wcwidth
+// Definitions by: Junyoung Choi <https://github.com/rokt33r>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare function wcwidth(input: string): number;
+
+export = wcwidth;
diff --git a/types/wcwidth/tsconfig.json b/types/wcwidth/tsconfig.json
new file mode 100644
index 0000000000..55ce5efd5b
--- /dev/null
+++ b/types/wcwidth/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",
+        "wcwidth-tests.ts"
+    ]
+}
diff --git a/types/wcwidth/tslint.json b/types/wcwidth/tslint.json
new file mode 100644
index 0000000000..f93cf8562a
--- /dev/null
+++ b/types/wcwidth/tslint.json
@@ -0,0 +1,3 @@
+{
+    "extends": "dtslint/dt.json"
+}
diff --git a/types/wcwidth/wcwidth-tests.ts b/types/wcwidth/wcwidth-tests.ts
new file mode 100644
index 0000000000..11f150a73c
--- /dev/null
+++ b/types/wcwidth/wcwidth-tests.ts
@@ -0,0 +1,5 @@
+import wcwidth = require('wcwidth');
+
+const length1 = wcwidth('한');   // => 2
+
+const length2 = wcwidth('한글'); // => 4