The gens Aviena, occasionally written Avienia, was an obscure plebeian family at ancient Rome.
The nomen Avienus belongs to a class of names formed using the suffix -enus, typically derived from other gentilicia.
[1] The main praenomina of the Avieni were Sextus and Titus, with a few other names receiving occasional use, including Gaius, Publius, and Quintus.
One family of the Avieni at Ostia used Sextus alone, and were differentiated by their cognomina, a phenomenon sometimes referred to as the "fossilization" of a praenomen, which became common in imperial times.
[2] The Avieni do not appear to have been divided into distinct stirpes, or branches, identified by hereditary surnames.