Świerczyn (Polish pronunciation: [ˈɕfjɛrt͡ʂɨn]) is a village in the administrative district of Gmina Topólka, within Radziejów County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 18 km (11 mi) south-east of Radziejów and 57 km (35 mi) south of Toruń.