Osłonin [ɔˈswɔnin] is a village in the administrative district of Gmina Przemęt, within Wolsztyn County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 10 kilometres (6 mi) south-west of Przemęt, 20 km (12 mi) south of Wolsztyn, and 70 km (43 mi) south-west of the regional capital Poznań.