Winterthur (disambiguation)
Winterthur may refer to:
- Winterthur, City in the Canton of Zürich, Switzerland
- Winterthur, Delaware, a small community near Wilmington, Delaware, United States
- Winterthur Museum and Country Estate a museum in Winterthur, Delaware
- FC Winterthur, a Swiss football club
- Winterthur Group, an insurance company
- Orchester Musikkollegium Winterthur, an orchestra based in Winterthur, Switzerland