Karczówek [karˈt͡ʂuvɛk] is a village in the administrative district of Gmina Topólka, within Radziejów County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 7 kilometres (4 mi) south of Topólka, 25 km (16 mi) south-east of Radziejów, and 65 km (40 mi) south of Toruń.