diff --git a/types/condense-whitespace/condense-whitespace-tests.ts b/types/condense-whitespace/condense-whitespace-tests.ts
new file mode 100644
index 0000000000..027b106195
--- /dev/null
+++ b/types/condense-whitespace/condense-whitespace-tests.ts
@@ -0,0 +1,7 @@
+import condense = require("condense-whitespace");
+
+// $ExpectType string
+condense("   \n\n\t Hello    World \t\n");
+
+// $ExpectError
+condense(1);
diff --git a/types/condense-whitespace/index.d.ts b/types/condense-whitespace/index.d.ts
new file mode 100644
index 0000000000..403d0eeec1
--- /dev/null
+++ b/types/condense-whitespace/index.d.ts
@@ -0,0 +1,8 @@
+// Type definitions for condense-whitespace 1.0
+// Project: https://github.com/sindresorhus/condense-whitespace
+// Definitions by: Daniel Cassidy <https://github.com/djcsdy>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare function condenseWhitespace(str: string): string;
+
+export = condenseWhitespace;
diff --git a/types/condense-whitespace/tsconfig.json b/types/condense-whitespace/tsconfig.json
new file mode 100644
index 0000000000..8d5705205d
--- /dev/null
+++ b/types/condense-whitespace/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",
+        "condense-whitespace-tests.ts"
+    ]
+}
diff --git a/types/condense-whitespace/tslint.json b/types/condense-whitespace/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/condense-whitespace/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }