Massa Martana (near the well attested ancient site of the Vicus Martis Tudertium on the Via Flaminia) is an ancient Italian town and comune in the Monti Martani mountain range in the province of Perugia (Umbria). It is 10 km N of Acquasparta, 18 km N of San Gemini and 32 km N of Narni; 14 km S of Bastardo and 27 km S of Bevagna. As of the 2003 census, the town had 3558 inhabitants.