Teschen may refer to:
- Cieszyn, Poland, known as Teschen in German
- Český Těšín, Czech Republic, a city 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
- Teschen disease, a viral disease named after the town
- Cieszyn Silesian dialect, a West Slavic dialect spoken in Cieszyn Silesia
See also
- History of Teschen