The Midewiwin (also spelled Midewin and Medewiwin) or the Grand Medicine Society is a secretive religion of the indigenous peoples of the Maritimes, New England and Great Lakes regions in North America. Its practitioners are called Midew and the practices of Midewiwin referred to as Mide. Occasionally, male Midew are called Midewinini, which sometimes is translated into English as "medicine man".