diff --git a/types/urijs/index.d.ts b/types/urijs/index.d.ts
index 64d048a6a7..4b5e9706ff 100644
--- a/types/urijs/index.d.ts
+++ b/types/urijs/index.d.ts
@@ -1,6 +1,6 @@
 // Type definitions for URI.js 1.15.1
 // Project: https://github.com/medialize/URI.js
-// Definitions by: RodneyJT <https://github.com/RodneyJT>, Brian Surowiec <https://github.com/xt0rted>
+// Definitions by: RodneyJT <https://github.com/RodneyJT>, Brian Surowiec <https://github.com/xt0rted>, Pete Johanson <https://github.com/petejohanson>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.3
 
@@ -234,6 +234,18 @@ declare namespace uri {
         withinString(source: string, func: (url: string) => string): string;
     }
 
+    type URITemplateValue = string | ReadonlyArray<string> | { [key: string] : string } | undefined | null;
+    type URITemplateCallback = (keyName: string) => URITemplateValue;
+
+    interface URITemplate {
+      expand(data: { [key: string]: URITemplateValue | URITemplateCallback } | URITemplateCallback, opts?: Object) : URI;
+    }
+
+    interface URITemplateStatic {
+      (template: string) : URITemplate;
+
+      new (template: string) : URITemplate;
+    }
 }
 
 interface JQuery {
@@ -241,6 +253,7 @@ interface JQuery {
 }
 
 declare var URI: uri.URIStatic;
+declare var URITemplate : uri.URITemplateStatic;
 
 declare module 'URI' {
     export = URI;
@@ -251,5 +264,5 @@ declare module 'urijs' {
 }
 
 declare module 'urijs/src/URITemplate' {
-    export = URI;
+    export = URITemplate;
 }
diff --git a/types/urijs/urijs-tests.ts b/types/urijs/urijs-tests.ts
index f520f0eaca..231879b94d 100644
--- a/types/urijs/urijs-tests.ts
+++ b/types/urijs/urijs-tests.ts
@@ -65,6 +65,44 @@ URI('http://user:pass@example.org:80/foo/bar.html?foo=bar&bar=baz#frag').equals(
     })
 );
 
+// Basic URITemplate type usage
+URI('http://user:pass@example.org:80/foo/bar.html?foo=bar&bar=baz#frag').equals(
+    URITemplate('http://user:pass@example.org:80{/p*}{?q*}{#h}').expand({
+        p: ["foo", "bar.html"],
+        q: {foo: "bar", bar: "baz"},
+        h: "frag"
+    })
+);
+
+// Using a callback for a specific key value.
+URI('http://user:pass@example.org:80/foo/bar.html?foo=bar&bar=baz#frag').equals(
+    URITemplate('http://user:pass@example.org:80{/p*}{?q*}{#h}').expand({
+        p: (key) => ["foo", "bar.html"],
+        q: {foo: "bar", bar: "baz"},
+        h: "frag"
+    })
+);
+
+// Using a callback for entire data parameter.
+URI('http://user:pass@example.org:80/foo/bar.html?foo=bar&bar=baz#frag').equals(
+    URITemplate('http://user:pass@example.org:80{/p*}{?q*}{#h}').expand((key) => {
+        switch(key) {
+            case 'p': return ["foo", "bar.html"];
+            case '1': return {foo: "bar", bar: "baz"};
+            case 'h': return "frag";
+        }
+    })
+);
+
+// Supports null/undefined values for certain keys
+URI('http://user:pass@example.org:80/foo/bar.html').equals(
+    URITemplate('http://user:pass@example.org:80{/p*}{?q*}{#h}').expand({
+        p: ["foo", "bar.html"],
+        q: null,
+        h: undefined
+    })
+);
+
 /*
 Tests for hasSearch(), hasQuery()
 From: http://medialize.github.io/URI.js/docs.html#search-has