diff --git a/types/imagemin-optipng/imagemin-optipng-tests.ts b/types/imagemin-optipng/imagemin-optipng-tests.ts
new file mode 100644
index 0000000000..ce0eb272ee
--- /dev/null
+++ b/types/imagemin-optipng/imagemin-optipng-tests.ts
@@ -0,0 +1,9 @@
+import imagemin = require('imagemin');
+import imageminOptipng = require('imagemin-optipng');
+
+imagemin(['*.png'], {
+    plugins: [
+        imageminOptipng(),
+        imageminOptipng({ optimizationLevel: 2 })
+    ]
+});
diff --git a/types/imagemin-optipng/index.d.ts b/types/imagemin-optipng/index.d.ts
new file mode 100644
index 0000000000..9ab9506205
--- /dev/null
+++ b/types/imagemin-optipng/index.d.ts
@@ -0,0 +1,19 @@
+// Type definitions for imagemin-optipng 5.2
+// Project: https://github.com/imagemin/imagemin-optipng#readme
+// Definitions by: Romain Faust <https://github.com/romain-faust>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+import { Plugin } from 'imagemin';
+
+declare function imageminOptipng(options?: imageminOptipng.Options): Plugin;
+
+declare namespace imageminOptipng {
+    interface Options {
+        bitDepthReduction?: boolean;
+        colorTypeReduction?: boolean;
+        optimizationLevel?: number;
+        paletteReduction?: boolean;
+    }
+}
+
+export = imageminOptipng;
diff --git a/types/imagemin-optipng/tsconfig.json b/types/imagemin-optipng/tsconfig.json
new file mode 100644
index 0000000000..586e747281
--- /dev/null
+++ b/types/imagemin-optipng/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",
+        "imagemin-optipng-tests.ts"
+    ]
+}
diff --git a/types/imagemin-optipng/tslint.json b/types/imagemin-optipng/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/imagemin-optipng/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }