Rząśnik (Polish pronunciation: [ˈʐɔ̃ɕɲik]) (German: Schönwaldau) is a village in the administrative district of Gmina Świerzawa, within Złotoryja County, Lower Silesian Voivodeship, in south-western Poland. Until 1945 it was in Germany. It lies approximately 9 kilometres (6 mi) west of Świerzawa, 16 km (10 mi) south-west of Złotoryja, and 89 km (55 mi) west of the regional capital Wrocław.