Mazzano Romano is a comune (municipality) in the Province of Rome in the Italian region Latium, located about 35 kilometres (22 mi) north of Rome.
Mazzano Romano borders the following municipalities: Calcata, Campagnano di Roma, Castel Sant'Elia, Faleria, Magliano Romano, Nepi.
It was first mentioned in 945, one of the villages that formed from the great estate assembled by Pope Adrian I about 780, his Domusculta Capracorum. It includes the Regional Park of Veii.
- ^ All demographics and other statistics: Italian statistical institute Istat.
- ^ J.B. Ward-Perkins, "Etruscan Towns, Roman Roads and Medieval Villages: The Historical Geography of Southern Etruria" The Geographical Journal 128.4 (December 1962:389-404) p. 402