diff --git a/types/hasha/hasha-tests.ts b/types/hasha/hasha-tests.ts
new file mode 100644
index 0000000000..d0054de81a
--- /dev/null
+++ b/types/hasha/hasha-tests.ts
@@ -0,0 +1,19 @@
+import hasha = require('hasha');
+
+let str: string | null;
+let buf: Buffer | null;
+
+str = hasha('unicorn');
+str = hasha('unicorn', {algorithm: 'md5'});
+str = hasha('unicorn', {algorithm: 'md5', encoding: 'latin1'});
+buf = hasha('unicorn', {algorithm: 'md5', encoding: 'buffer'});
+
+process.stdin.pipe(hasha.stream()).pipe(process.stdout);
+
+hasha.fromStream(process.stdin).then(hash => str = hash);
+hasha.fromStream(process.stdin, {encoding: 'hex'}).then(hash => str = hash);
+hasha.fromStream(process.stdin, {encoding: 'buffer'}).then(hash => buf = hash);
+
+hasha.fromFile('unicorn.png').then(hash => str = hash);
+hasha.fromFile('unicorn.png', {encoding: 'base64'}).then(hash => str = hash);
+hasha.fromFile('unicorn.png', {encoding: 'buffer'}).then(hash => buf = hash);
diff --git a/types/hasha/index.d.ts b/types/hasha/index.d.ts
new file mode 100644
index 0000000000..a158af88a3
--- /dev/null
+++ b/types/hasha/index.d.ts
@@ -0,0 +1,38 @@
+// Type definitions for hasha 3.0
+// Project: https://github.com/sindresorhus/hasha
+// Definitions by: BendingBender <https://github.com/BendgingBender>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/// <reference types="node"/>
+import * as crypto from "crypto";
+
+export = hasha;
+
+declare function hasha(input: hasha.HashaInput): string;
+declare function hasha<E extends hasha.ToStringEncoding>(input: hasha.HashaInput, options: hasha.HashaOptions<E>): string;
+declare function hasha<E extends 'buffer'>(input: hasha.HashaInput, options: hasha.HashaOptions<E>): Buffer;
+
+declare namespace hasha {
+    type HashaInput = string | string[] | Buffer | Buffer[];
+    type ToStringEncoding = 'hex' | 'base64' | 'latin1' | 'binary' | undefined;
+    type HashaEncoding = ToStringEncoding | 'buffer';
+
+    interface HashaOptions<E extends HashaEncoding> {
+        encoding?: E;
+        algorithm?: string;
+    }
+
+    function stream(options?: HashaOptions<HashaEncoding>): crypto.Hash;
+
+    function fromStream(stream: NodeJS.ReadableStream): Promise<string | null>;
+    function fromStream<E extends ToStringEncoding>(stream: NodeJS.ReadableStream, options?: HashaOptions<E>): Promise<string | null>;
+    function fromStream<E extends 'buffer'>(stream: NodeJS.ReadableStream, options?: HashaOptions<E>): Promise<Buffer | null>;
+
+    function fromFile(filePath: string): Promise<string | null>;
+    function fromFile<E extends ToStringEncoding>(filePath: string, options: HashaOptions<E>): Promise<string | null>;
+    function fromFile<E extends 'buffer'>(filePath: string, options: HashaOptions<E>): Promise<Buffer | null>;
+
+    function fromFileSync(filePath: string): string;
+    function fromFileSync<E extends ToStringEncoding>(filePath: string, options: HashaOptions<E>): string;
+    function fromFileSync<E extends 'buffer'>(filePath: string, options: HashaOptions<E>): Buffer;
+}
diff --git a/types/hasha/tsconfig.json b/types/hasha/tsconfig.json
new file mode 100644
index 0000000000..3aeb5973e8
--- /dev/null
+++ b/types/hasha/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",
+        "hasha-tests.ts"
+    ]
+}
diff --git a/types/hasha/tslint.json b/types/hasha/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/hasha/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }