Bnin [bnin] is part of the town of Kórnik, south-west of the city of Poznań, in Greater Poland Voivodeship in western Poland. From 1395 to 1934 Bnin was a town in its own right. It became part of Kórnik in 1961.
In the former settlement of Prowent, lying between Bnin and Kórnik centre, the Literature Nobel Prize winner Wisława Szymborska was born in 1923.