Korczew [ˈkɔrt͡ʂɛf] is a village in Siedlce County, Masovian Voivodeship, in east-central Poland. It is the seat of the gmina (administrative district) called Gmina Korczew. It lies approximately 32 kilometres (20 mi) north-east of Siedlce and 111 km (69 mi) east of Warsaw.