Sulnówko [sulˈnufkɔ] is a village in the administrative district of Gmina Świecie, within Świecie County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 3 kilometres (2 mi) north-west of Świecie, 45 km (28 mi) north-east of Bydgoszcz, and 47 km (29 mi) north of Toruń.