Riehen is a municipality in the canton of Basel-City 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 renowned privately-owned art gallery) as well as a toy museum. It also features numerous heritage sites of national significance: the church of St. Martin, several residential houses (the Wettsteinhäuser and the houses Huber, Schaeffer and Colnaghi) as well as the Wenkenhof estate.