Korboniec [kɔrˈbɔɲɛt͡s] is a village in the administrative district of Gmina Wiśniewo, within Mława County, Masovian Voivodeship, in east-central Poland. It lies approximately 5 kilometres (3 mi) north-west of Wiśniewo, 4 km (2 mi) south-west of Mława, and 109 km (68 mi) north-west of Warsaw.