Korytnica [kɔrɨtˈnit͡sa] is a village in Węgrów County, Masovian Voivodeship, in east-central Poland. It is the seat of the gmina (administrative district) called Gmina Korytnica. It lies approximately 12 kilometres (7 mi) west of Węgrów and 62 km (39 mi) east of Warsaw.