Suśnia [ˈsuɕɲa] is a village in the administrative district of Gmina Koźmin Wielkopolski, within Krotoszyn County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 8 kilometres (5 mi) south-west of Koźmin Wielkopolski, 13 km (8 mi) north-west of Krotoszyn, and 76 km (47 mi) south-east of the regional capital Poznań.