Dzierżążno [d͡ʑerˈʐɔ̃ʐnɔ] (German: Seeresen; Kashubian: Dzérzążno) is a village in the administrative district of Gmina Kartuzy, within Kartuzy County, Pomeranian Voivodeship, in northern Poland. It lies approximately 5 kilometres (3 mi) south-east of Kartuzy and 25 km (16 mi) west of the regional capital Gdańsk.