Aleksandrowo [alɛksanˈdrɔvɔ] is a village in the administrative district of Gmina Nasielsk, within Nowy Dwór County, Masovian Voivodeship, in east-central Poland. It lies approximately 8 kilometres (5 mi) south of Nasielsk, 14 km (9 mi) north-east of Nowy Dwór Mazowiecki, and 38 km (24 mi) north of Warsaw.