diff --git a/types/node-hook/index.d.ts b/types/node-hook/index.d.ts
new file mode 100644
index 0000000000..320587b4b3
--- /dev/null
+++ b/types/node-hook/index.d.ts
@@ -0,0 +1,22 @@
+// Type definitions for node-hook 1.0
+// Project: https://github.com/bahmutov/node-hook#readme
+// Definitions by: Nathan Hardy <https://github.com/nhardy>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+interface Options {
+    verbose?: boolean;
+}
+
+type Transform = (source: string, filename: string) => string;
+
+interface NodeHook {
+    hook: {
+        (extension: string, transform: Transform, options?: Options): void;
+        (transform: Transform, _?: undefined, options?: Options): void;
+    };
+    unhook(extension?: string): void;
+}
+
+declare const hook: NodeHook;
+
+export = hook;
diff --git a/types/node-hook/node-hook-tests.ts b/types/node-hook/node-hook-tests.ts
new file mode 100644
index 0000000000..3f38febbb0
--- /dev/null
+++ b/types/node-hook/node-hook-tests.ts
@@ -0,0 +1,12 @@
+import hook = require("node-hook");
+
+function logLoadedFilename(source: string, filename: string) {
+    return `console.log(${JSON.stringify(filename)});\n${source}`;
+}
+
+hook.hook(logLoadedFilename);
+hook.hook(logLoadedFilename, undefined, { verbose: true });
+hook.hook(".ts", logLoadedFilename);
+hook.hook(".ts", logLoadedFilename, {});
+hook.unhook();
+hook.unhook(".ts");
diff --git a/types/node-hook/tsconfig.json b/types/node-hook/tsconfig.json
new file mode 100644
index 0000000000..a994dca051
--- /dev/null
+++ b/types/node-hook/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "node-hook-tests.ts"
+    ]
+}
diff --git a/types/node-hook/tslint.json b/types/node-hook/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/node-hook/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }