Teschen may refer to:
Cieszyn, Poland, known as Teschen in German Český Těšín, Czech Republic, a town split off from Cieszyn in 1920 Cieszyn Silesia, a geographic region spanning the Czech–Polish border Duchy of Teschen, a historical region in Central Europe Flag of the Duchy of Teschen Cieszyn Silesian dialect, a West Slavic dialect spoken in Cieszyn Silesia
See also History of Cieszyn