The word Haynau redirects here. For the Austrian general, please see Julius Jacob von Haynau.

Chojnów [ˈxɔjnuf] (German:Haynau) is a small town in Legnica County, Lower Silesian Voivodeship, in south-western Poland. It is located on the Skora river, a tributary of the Kaczawa at an average altitude of 170 m (560 ft) above sea level. Chojnów is the administrative seat of the rural gmina called Gmina Chojnów, although the town is not part of its territory and forms a separate urban gmina. As of 2006 it had 14,389 inhabitants.