Wąsosz [ˈvɔ̃sɔʂ] is a village in the administrative district of Gmina Szubin, within Nakło County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 9 kilometres (6 mi) south of Szubin, 24 km (15 mi) south-east of Nakło nad Notecią, and 27 km (17 mi) south-west of Bydgoszcz.