Winterthur is a city in the Canton of Zürich, Switzerland. Winterthur may also refer to: FC Winterthur, a football club in Winterthur, Switzerland Winterthur Group, a multinational insurance company originally founded in Winterthur, Switzerland Winterthur Museum, Garden and Library, a museum in Winterthur, Delaware EHC Winterthur, an ice hockey team in Winterthur, Switzerland Orchester Musikkollegium Winterthur, an orchestra based in Winterthur, Switzerland