- a river in N Europe, flowing N from the NW Czech Republic along part of the boundary between Germany and Poland to the Oder River. 145 miles (233 km) long.
- a river in SW Poland, rising on the northern Czech border, and flowing northeast to join the Oder near Brzeg. Length: about 193 km (120 miles)
- a river in E Europe, rising near Liberec in the Czech Republic and flowing north to join the Oder: forms part of the German–Polish border. Length: 225 km (140 miles)
