Mikołajki [mikɔˈwai̯ki] is a village in the administrative district of Gmina Boniewo, within Włocławek County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 3 kilometres (2 mi) east of Boniewo, 20 km (12 mi) south-west of Włocławek, and 64 km (40 mi) south of Toruń.