Zagościniec [zaɡɔɕˈt͡ɕiɲɛt͡s] is a village in the administrative district of Gmina Wołomin, within Wołomin County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) north-east of Wołomin and 24 km (15 mi) north-east of Warsaw.