Drężek [ˈdrɛ̃ʐɛk] is a village in the administrative district of Gmina Myszyniec, within Ostrołęka County, Masovian Voivodeship, in east-central Poland. It lies approximately 5 kilometres (3 mi) east of Myszyniec, 35 km (22 mi) north of Ostrołęka, and 131 km (81 mi) north of Warsaw.