Głęboczek [ɡwɛmˈbɔt͡ʂɛk] is a village in the administrative district of Gmina Szubin, within Nakło County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 10 kilometres (6 mi) north of Szubin, 13 km (8 mi) east of Nakło nad Notecią, and 16 km (10 mi) west of Bydgoszcz.