Madsen may refer to: People Madsen (surname) Places Canada Madsen, Ontario, a community United States Madsen, Wisconsin, an unincorporated community Other Madsen (band), German rock band DISA (company), Dansk Industri Syndikat A/S, is also known as Madsen, after its founder Madsen machine gun, Danish light machine gun/squad automatic weapon Madsen-Saetter machine gun, Danish general purpose machine gun Madsen M-50, Danish submachine gun Madsen 20 mm anti-aircraft cannon, Danish type of machine cannon