Radzanowo [rad͡zaˈnɔvɔ] is a village in Płock County, Masovian Voivodeship, in east-central Poland. It is the seat of the gmina (administrative district) called Gmina Radzanowo. It lies approximately 15 kilometres (9 mi) east of Płock and 86 km (53 mi) north-west of Warsaw.