diff --git a/types/is-function/index.d.ts b/types/is-function/index.d.ts
new file mode 100644
index 0000000000..96a13f0b34
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+++ b/types/is-function/index.d.ts
@@ -0,0 +1,8 @@
+// Type definitions for is-function 1.0
+// Project: https://github.com/grncdr/js-is-function
+// Definitions by: Evangelos Zotos <https://github.com/evangeloszotos>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare function isFunction(fn: any): boolean;
+declare namespace isFunction {}
+export = isFunction;
diff --git a/types/is-function/is-function-tests.ts b/types/is-function/is-function-tests.ts
new file mode 100644
index 0000000000..a4f4215875
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+++ b/types/is-function/is-function-tests.ts
@@ -0,0 +1,9 @@
+import * as isFunction from "is-function";
+
+const a: boolean = isFunction("string");
+const b: boolean = isFunction(true);
+const c: boolean = isFunction((a: number) => a * a);
+const d: boolean = isFunction({ type: "number" });
+const e: boolean = isFunction(() => {
+    return "I am anounymous!";
+});
diff --git a/types/is-function/tsconfig.json b/types/is-function/tsconfig.json
new file mode 100644
index 0000000000..ab7efbe2c7
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+++ b/types/is-function/tsconfig.json
@@ -0,0 +1,16 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": ["es6"],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": ["../"],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": ["index.d.ts", "is-function-tests.ts"]
+}
diff --git a/types/is-function/tslint.json b/types/is-function/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/is-function/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }