Riehen (Swiss German: Rieche) is a municipality in the canton of Basel-Stadt in Switzerland. Together with the city of Basel and Bettingen, Riehen is one of three municipalities in the canton.Riehen hosts the Fondation Beyeler (a privately owned art gallery) as well as a toy museum. Riehen was the first municipality in Switzerland to elect a woman, Trudy Späth-Schweizer to political office, in 1958.