Olsza, Kuyavian-Pomeranian Voivodeship

Olsza is a village in the administrative district of Gmina Mogilno, within Mogilno County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 4 km south-east of Mogilno, 54 km south of Bydgoszcz, and 61 km south-west of Toruń.