Zielonka [ʑɛˈlɔŋka] is a village in the administrative district of Gmina Białe Błota, within Bydgoszcz County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies 6 kilometres (4 mi) south of Białe Błota and 8 km (5 mi) south-west of Bydgoszcz.