Ostercappeln is a municipality in the district of Osnabrück, in Lower Saxony, Germany. It is situated in the Wiehengebirge, approx. 15 km northeast of Osnabrück. The municipality is made up of three villages, Ostercappeln, Venne and Schwagstorf, along the Bundesstraße 218. Ostercappeln is the location of the St. Raphael hospital, which serves a general hospital for the surrounding municipalities and as a center for pulmonary diseases for the district.