Porcia (Before 95 BC-46/45 BC) was the daughter Marcus Porcius Cato Salonianus and Livia Drusa. She was the elder sister of Marcus Porcius Cato Uticensis and the younger half-sister of Servilia Caepionis, the younger Servilia and Quintus Servilius Caepio. She was the aunt of Marcus Junius Brutus, Porcia Catonis and Junia Tertia.

Porcia is a comune (municipality) in the Province of Pordenone in the Italian region Friuli-Venezia Giulia, located about 100 km northwest of Trieste and about 3 km west of Pordenone. As of 31 December 2004, it had a population of 14,316 and an area of 29.5 km2.All demographics and other statistics: Italian statistical institute Istat.