Biernatki [bjɛrˈnatki] is a village in the administrative district of Gmina Lubraniec, within Włocławek County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 3 kilometres (2 mi) south-east of Lubraniec, 18 km (11 mi) south-west of Włocławek, and 58 km (36 mi) south of Toruń.