Gąsawa is a town in Żnin County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It is the seat of the gmina called Gmina Gąsawa. It lies approximately 10 kilometres (6 mi) south of Żnin and 43 km (27 mi) south-west of Bydgoszcz. It is situated on the western shore of the Gąsawskie Lake in the region of Pałuki.

Żnin is a town in north-central Poland with a population of 14,181. It is in the Kuyavian-Pomeranian Voivodeship and is the capital of Żnin County. The historical town, initially established in the 11th century, is situated in the historic land of Pałuki and the Gniezno Lake Area on the river Gąsawka.