Kuślin [ˈkuɕlin] is a village in Nowy Tomyśl County, Greater Poland Voivodeship, in west-central Poland. It is the seat of the gmina (administrative district) called Gmina Kuślin. It lies approximately 14 kilometres (9 mi) north-east of Nowy Tomyśl and 41 km (25 mi) west of the regional capital Poznań.