diff --git a/types/mapbox__geo-viewport/index.d.ts b/types/mapbox__geo-viewport/index.d.ts
new file mode 100644
index 0000000000..9193e891ec
--- /dev/null
+++ b/types/mapbox__geo-viewport/index.d.ts
@@ -0,0 +1,15 @@
+// Type definitions for @mapbox/geo-viewport 0.3
+// Project: https://github.com/mapbox/geo-viewport
+// Definitions by: Fabio Berta <https://github.com/fnberta>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export interface GeoViewport {
+    center: [number, number];
+    zoom: number;
+}
+
+export type BoundingBox = [number, number, number, number];
+
+export function viewport(bounds: BoundingBox, dimensions: [number, number], minzoom?: number, maxzoom?: number, tileSize?: number): GeoViewport;
+
+export function bounds(viewport: { lon: number; lat: number }, zoom: number, dimensions: [number, number], tileSize?: number): BoundingBox;
diff --git a/types/mapbox__geo-viewport/mapbox__geo-viewport-tests.ts b/types/mapbox__geo-viewport/mapbox__geo-viewport-tests.ts
new file mode 100644
index 0000000000..c5349ac782
--- /dev/null
+++ b/types/mapbox__geo-viewport/mapbox__geo-viewport-tests.ts
@@ -0,0 +1,13 @@
+import { viewport, bounds } from '@mapbox/geo-viewport';
+
+const geoViewport = viewport([
+    5.668343999999995,
+    45.111511000000014,
+    5.852471999999996,
+    45.26800200000002,
+], [640, 480]);
+
+const boundingBox = bounds({
+    lon: 100,
+    lat: 200,
+}, 14, [640, 480]);
diff --git a/types/mapbox__geo-viewport/tsconfig.json b/types/mapbox__geo-viewport/tsconfig.json
new file mode 100644
index 0000000000..82825c8c50
--- /dev/null
+++ b/types/mapbox__geo-viewport/tsconfig.json
@@ -0,0 +1,28 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "paths": {
+            "@mapbox/geo-viewport": [
+                "mapbox__geo-viewport"
+            ]
+        },
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "mapbox__geo-viewport-tests.ts"
+    ]
+}
diff --git a/types/mapbox__geo-viewport/tslint.json b/types/mapbox__geo-viewport/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/mapbox__geo-viewport/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }