Nowe Niestępowo [ˈnɔvɛ ɲɛstɛmˈpɔvɔ] is a village in the administrative district of Gmina Pokrzywnica, within Pułtusk County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) northeast of Pokrzywnica, 9 km (6 mi) southwest of Pułtusk, and 47 km (29 mi) north of Warsaw.