Kwisa
 The Kwisa [ˈkfisa] (German: Queis) is a river in south-western Poland a left tributary of the Bóbr which itself is a left tributary of the Oder river. It rises in the Izera Mountains part of the Western Sudetes range where it runs along the border with the Czech Republic. At the slope of the Smrk massif it turns northwards flowing along the towns of Świeradów-Zdrój Mirsk Gryfów Śląski Leśna where it is dammed at the Lake Leśnia reservoir to Lubań Nowogrodziec and Kliczków.