diff --git a/types/bcp-47-match/bcp-47-match-tests.ts b/types/bcp-47-match/bcp-47-match-tests.ts
new file mode 100644
index 0000000000..576779aa37
--- /dev/null
+++ b/types/bcp-47-match/bcp-47-match-tests.ts
@@ -0,0 +1,17 @@
+import bcp47Match = require('bcp-47-match');
+
+const basic = bcp47Match.basicFilter;
+const extended = bcp47Match.extendedFilter;
+const lookup = bcp47Match.lookup;
+
+const tags = ['en', 'es'];
+const ranges = ['en-US', 'es-US'];
+
+const basicResult1: string[] = basic(tags, ranges);
+const basicResult2: string[] = basic(tags[0], ranges[0]);
+
+const extendedResult1: string[] = extended(tags, ranges);
+const extendedResult2: string[] = extended(tags[0], ranges[0]);
+
+const lookupResult1: string | undefined = lookup(tags, ranges);
+const lookupResult2: string | undefined = lookup(tags[0], ranges[0]);
diff --git a/types/bcp-47-match/index.d.ts b/types/bcp-47-match/index.d.ts
new file mode 100644
index 0000000000..54f4cc5182
--- /dev/null
+++ b/types/bcp-47-match/index.d.ts
@@ -0,0 +1,8 @@
+// Type definitions for bcp-47-match 1.0
+// Project: https://github.com/wooorm/bcp-47-match#readme
+// Definitions by: Chris Barth <https://github.com/cjbarth>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export function basicFilter(tags: string | string[], ranges: string | string[]): string[];
+export function extendedFilter(tags: string | string[], ranges: string | string[]): string[];
+export function lookup(tags: string | string[], ranges: string | string[]): string | undefined;
diff --git a/types/bcp-47-match/tsconfig.json b/types/bcp-47-match/tsconfig.json
new file mode 100644
index 0000000000..973220ab34
--- /dev/null
+++ b/types/bcp-47-match/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",
+        "bcp-47-match-tests.ts"
+    ]
+}
diff --git a/types/bcp-47-match/tslint.json b/types/bcp-47-match/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/bcp-47-match/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }