diff --git a/types/github-username/github-username-tests.ts b/types/github-username/github-username-tests.ts
new file mode 100644
index 0000000000..0caee06bdc
--- /dev/null
+++ b/types/github-username/github-username-tests.ts
@@ -0,0 +1,4 @@
+import githubUsername = require('github-username');
+
+// $ExpectType Promise<string>
+githubUsername('sindresorhus@gmail.com', 'deadbeef');
diff --git a/types/github-username/index.d.ts b/types/github-username/index.d.ts
new file mode 100644
index 0000000000..a1083c7dc3
--- /dev/null
+++ b/types/github-username/index.d.ts
@@ -0,0 +1,8 @@
+// Type definitions for github-username 4.1
+// Project: https://github.com/sindresorhus/github-username#readme
+// Definitions by: BendingBender <https://github.com/BendingBender>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export = githubUsername;
+
+declare function githubUsername(email: string, token: string): Promise<string>;
diff --git a/types/github-username/tsconfig.json b/types/github-username/tsconfig.json
new file mode 100644
index 0000000000..33308515f6
--- /dev/null
+++ b/types/github-username/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",
+        "github-username-tests.ts"
+    ]
+}
diff --git a/types/github-username/tslint.json b/types/github-username/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/github-username/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }