Wiesendangen is a municipality in the district of Winterthur in the canton of Zürich in Switzerland. On 1 January 2014 the former municipality of Bertschikon merged into the municipality of Wiesendangen. At the same time the Community Identification Number changed from 0229 to 0298.

Wiesendangen municipality (as of 2014) includes the former villages, hamlets or municipalities of: Wiesendangen, Attikon, Wallikon, Menzengrüt, Buch, Bertschikon, Gundetswil, Kefikon, Liebensberg, Stegen, Gündlikon and Zünikon. It is located on the site of Roman estates built in the 2nd and 3rd centuries along the road between Oberwinterthur and Pfyn . The area was acquired by St.