Gostycyn is a village in Tuchola County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It is the seat of the gmina called Gmina Gostycyn. It lies approximately 13 kilometres (8 mi) south of Tuchola and 44 km (27 mi) north of Bydgoszcz. It is located within the historic region of Pomerania.