Pęperzyn [pɛmˈpɛʐɨn] is a village in the administrative district of Gmina Więcbork, within Sępólno County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 8 kilometres (5 mi) south-east of Więcbork, 17 km (11 mi) south of Sępólno Krajeńskie, and 37 km (23 mi) north-west of Bydgoszcz.