Jastrzębiec [jasˈtʂɛmbjɛt͡s] is a village in the administrative district of Gmina Więcbork, within Sępólno County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 7 kilometres (4 mi) east of Więcbork, 12 km (7 mi) south-east of Sępólno Krajeńskie, and 38 km (24 mi) north-west of Bydgoszcz.