Zwoleń (Yiddish: זוואלין Zvolin) is a town in Poland, in Mazowsze Voivodeship, about 30 km east of Radom. It is the capital of Zwoleń County. Population is 8,048 (2009). Zwoleń belongs to Sandomierz Land of the historic province of Lesser Poland, and is located on the Zwoleńka river.