Sławin [ˈswavin] is a village in the administrative district of Gmina Sieroszewice, within Ostrów Wielkopolski County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 7 kilometres (4 mi) east of Sieroszewice, 26 km (16 mi) east of Ostrów Wielkopolski, and 116 km (72 mi) south-east of the regional capital Poznań.