Iwiec [ˈivjɛt͡s] is a village in the administrative district of Gmina Cekcyn, within Tuchola County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 6 kilometres (4 mi) south-east of Cekcyn, 17 km (11 mi) south-east of Tuchola, and 47 km (29 mi) north of Bydgoszcz.