Endingen (swissdeutsch: ændigə) is a municipality in the district Zurzach in the canton of Aargau in Switzerland. It is located in the Surb Valley, about four kilometers from the border with Germany. In the 18th and 19th centuries Endingen and the neighboring village of Lengnau were the only places in Switzerland where Jews were allowed to settle. Until 1945 the community was called Oberendingen.