Chudek [ˈxudɛk] is a village in the administrative district of Gmina Kadzidło, within Ostrołęka County, Masovian Voivodeship, in east-central Poland. It lies approximately 8 kilometres (5 mi) south-west of Kadzidło, 18 km (11 mi) north-west of Ostrołęka, and 111 km (69 mi) north of Warsaw.