Flancourt-Crescy-en-Roumois (, literally Flancourt-Crescy in Roumois) is a commune in the department of Eure, northern France. The municipality was established on 1 January 2016 by merger of the former communes of Bosc-Bénard-Crescy, ÃÂpreville-en-Roumois and Flancourt-Catelon.