Sapieżyn [saˈpjɛʐɨn] is a village in the administrative district of Gmina Koźmin Wielkopolski, within Krotoszyn County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 7 kilometres (4 mi) north-east of Koźmin Wielkopolski, 22 km (14 mi) north of Krotoszyn, and 72 km (45 mi) south-east of the regional capital Poznań.