Kaczawa

Infobox_River
river_name = _de. Katzbach, _pl. Kaczawa

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image_size = 277px
caption = The Bridge over the River Katzbach in Legnica
origin = Katzbach Mountains
mouth =
basin_countries = Poland
length = 98 km
elevation =
mouth_elevation =
discharge =
watershed = 2500 km²The Kaczawa ( _de. Katzbach) is a small river in the Lower Silesian Voivodeship in Poland. It springs from the Bóbr-Kaczawa Mountains near Kaczorów and flows north and northeast through the towns of Świerzawa, Złotoryja, and Legnica. After a length of 98 km the Kaczawa empties into the Oder (Odra) river at Prochowice.

Katzenbach valley is the oldest territory of German settlement in Silesia.

The Kaczawa between Legnica and Dunino was the site of the Battle of Katzbach on 26 August 1813 during the Napoleonic Wars.