diff --git a/README.md b/README.md
index e0454a6b9..b326634e0 100755
--- a/README.md
+++ b/README.md
@@ -30,6 +30,7 @@ List of Definitions
 * [Add To Home Screen] (http://cubiq.org/add-to-home-screen) (by [James Wilkins] (http://www.codeplex.com/site/users/view/jamesnw))
 * [AmCharts](http://www.amcharts.com/) (by [Covobonomo](https://github.com/covobonomo/))
 * [AngularJS](http://angularjs.org) (by [Diego Vilar](https://github.com/diegovilar)) ([wiki](https://github.com/borisyankov/DefinitelyTyped/wiki/AngularJS-Definitions-Usage-Notes))
+* [AngularUI](http://angular-ui.github.io/) (by [Michel Salib](https://github.com/michelsalib))
 * [AppFramework](http://app-framework-software.intel.com/) (by [Kyo Ago](https://github.com/kyo-ago))
 * [Arbiter](http://arbiterjs.com/) (by [Arash Shakery](https://github.com/arash16))
 * [async](https://github.com/caolan/async) (by [Boris Yankov](https://github.com/borisyankov))
diff --git a/angular-ui/angular-ui-router-tests.ts b/angular-ui/angular-ui-router-tests.ts
new file mode 100644
index 000000000..3d7ce3b5c
--- /dev/null
+++ b/angular-ui/angular-ui-router-tests.ts
@@ -0,0 +1,57 @@
+/// <reference path="angular-ui-router.d.ts" />
+
+var myApp = angular.module('testModule');
+
+
+myApp.config((
+    $stateProvider: ng.ui.IStateProvider,
+    $urlRouterProvider: ng.ui.IUrlRouterProvider) => {
+  //
+  // For any unmatched url, redirect to /state1
+  $urlRouterProvider.otherwise("/state1");
+  //
+  // Now set up the states
+  $stateProvider
+    .state('state1', {
+      url: "/state1",
+      templateUrl: "partials/state1.html"
+    })
+    .state('state1.list', {
+      url: "/list",
+      templateUrl: "partials/state1.list.html",
+      controller: function($scope) {
+        $scope.items = ["A", "List", "Of", "Items"];
+      }
+    })
+    .state('state2', {
+      url: "/state2",
+      templateUrl: "partials/state2.html"
+    })
+    .state('state2.list', {
+      url: "/list",
+        templateUrl: "partials/state2.list.html",
+        controller: function($scope) {
+          $scope.things = ["A", "Set", "Of", "Things"];
+        }
+      }).state('index', {
+      url: "",
+      views: {
+        "viewA": { template: "index.viewA" },
+        "viewB": { template: "index.viewB" }
+      }
+    })
+    .state('route1', {
+      url: "/route1",
+      views: {
+        "viewA": { template: "route1.viewA" },
+        "viewB": { template: "route1.viewB" }
+      }
+    })
+    .state('route2', {
+      url: "/route2",
+      views: {
+        "viewA": { template: "route2.viewA" },
+        "viewB": { template: "route2.viewB" }
+      }
+    });
+});
\ No newline at end of file
diff --git a/angular-ui/angular-ui-router.d.ts b/angular-ui/angular-ui-router.d.ts
new file mode 100644
index 000000000..1046b1cb2
--- /dev/null
+++ b/angular-ui/angular-ui-router.d.ts
@@ -0,0 +1,83 @@
+// Type definitions for Angular JS 1.1.5+ (ui.router module)
+// Project: https://github.com/angular-ui/ui-router
+// Definitions by: Michel Salib <michelsalib@hotmail.com>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../angularjs/angular.d.ts" />
+
+declare module ng.ui {
+
+    interface IState {
+        template?: any;
+        templateUrl?: any;
+        templateProvider?: () => string;
+        controller?: any;
+        controllerProvider?: any;
+        resolve?: {};
+        url?: string;
+        params?: any[];
+        views?: {};
+        abstract?: boolean;
+        onEnter?: Function;
+        onExit?: Function;
+        data?: any;
+    }
+
+    interface IStateProvider extends IServiceProvider {
+        state(name:string, config:IState): IStateProvider;
+        decorator(name?: string, decorator?: (state: IState, parent: Function) => any): any;
+    }
+
+    interface IUrlMatcher {
+        concat(pattern: string): IUrlMatcher;
+        exec(path: string, searchParams: {}): {};
+    }
+
+    interface IUrlMatcherFactory {
+        compile(pattern: string): IUrlMatcher;
+        isMatcher(o: any): boolean;
+        parameters(): string[];
+        format(values: {}): string;
+    }
+
+    interface IUrlRouterProvider extends IServiceProvider {
+        when(whenPath: string, toPath: string): IUrlRouterProvider;
+        when(whenPath: RegExp, toPath: string): IUrlRouterProvider;
+        when(whenPath: IUrlMatcher, toPath: string): IUrlRouterProvider;
+        otherwise(path: string): IUrlRouterProvider;
+        otherwise(path: Function): IUrlRouterProvider;
+        rule(handler: Function): IUrlRouterProvider;
+    }
+
+    interface IStateOptions {
+        location?: any;
+        inherit?: boolean;
+        relative?: IState;
+        notify?: boolean;
+    }
+
+    interface IHrefOptions {
+        lossy?: boolean;
+        inherit?: boolean;
+        relative?: IState;
+        absolute?: boolean;
+    }
+
+    interface IStateService {
+        go(to: string, params?: {}, options?: IStateOptions): void;
+        transitionTo(state: string, params?: {}, updateLocation?: boolean): void;
+        transitionTo(state: string, params?: {}, options?: IStateOptions): void;
+        includes(state: string, params?: {}): boolean;
+        is(state:string, params?: {}): boolean;
+        is(state: IState, params?: {}): boolean;
+        href(state: IState, params?: {}, options?: IHrefOptions): string;
+        href(state: string, params?: {}, options?: IHrefOptions): string;
+        get(state: string): IState;
+        get(): IState[];
+        current: IState;
+    }
+
+    interface IStateParamsService {
+        [key: string]: any;
+    }
+}