Acey Abbey (French: Abbaye d'Acey; Latin: Aceyum) is a Cistercian abbey founded in 1136, and occupied since 1873 by Trappist monks. It is located in Vitreux in the department of Jura, France, on the River Ognon, about 26 kilometres north-north-east of Dole and about 7 kilometres north of Gendrey.