Mdzewko [ˈmd͡zɛfkɔ] is a village in the administrative district of Gmina Strzegowo, within Mława County, Masovian Voivodeship, in east-central Poland. It lies approximately 6 kilometres (4 mi) north of Strzegowo, 20 km (12 mi) south of Mława, and 96 km (60 mi) north-west of Warsaw.