Osieczek [ɔˈɕɛt͡ʂɛk] is a village in the administrative district of Gmina Rojewo, within Inowrocław County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 11 kilometres (7 mi) north-east of Rojewo, 22 km (14 mi) north of Inowrocław, 19 km (12 mi) west of Toruń, and 28 km (17 mi) south-east of Bydgoszcz.