Dübendorf is a municipality in the district of Uster in the canton of Zürich in Switzerland.

It is a suburb of Zürich in Switzerland with a population of about 23,000 (2007). It is the fourth largest city in the canton, after Zürich, Winterthur, and Uster.

Dübendorf is first mentioned in 946 as Tuobilindorf. On the northeastern side of the Adlisberg the ruins of the Dübelstein castle are situated; from 1487 to 1489 the home of Hans Waldmann, former mayor of the city of Zürich.

Dübendorf has an area of 13.6 km² (5.3 sq mi). Of this area, 37.6% is used for agricultural purposes, while 19.5% is forested. Of the rest of the land, 41.9% is settled (buildings or roads) and the remainder (1%) is non-productive (rivers, glaciers or mountains). In 1996^[update] housing and buildings made up 29.6% of the total area, while transportation infrastructure made up the rest (12.3%). Of the total unproductive area, water (streams and lakes) made up 1% of the area. As of 2007^[update] 40.1% of

The city is situated roughly 10 km (6.2 mi) north east of Zürich. It is bisected by the Glatt river which runs from the Greifensee (Lake Greifen) which lies directly to the southeast. Dübendorf is located in the Glatt Valley (German: Glattal). Dübendorf is located on the northern side of the Adlisberg, as well, on a terrace on the northern side of the city of Zurich the hamlets Gockhausen and Geeren.