Bnin, Nakło County
|Coordinates: 53°8′N 17°24′E / 53.133°N 17.400°E|
Bnin [bnin] is a village in the administrative district of Gmina Sadki, within Nakło County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 5 kilometres (3 mi) south-west of Sadki, 13 km (8 mi) west of Nakło nad Notecią, and 41 km (25 mi) west of Bydgoszcz.
The village has a population of 281.