Avitus is a cognomen used by various Romans of Imperial times. Although some of them may have been related, there is no evidence that they constituted a distinct family.
Some of the more notable Aviti are:
Alphius Avitus, a poet of uncertain date (1st century BC to 1st century)
Lucius Hedius Rufus Lollianus Avitus, consul in 144; see Lollianus
Quintus Hedius Lollianus Plautius Avitus, consul in 209
Gaius Julius Avitus Alexianus (flourished 2nd century & 3rd century), brother-in-law of Roman Emperor Septimius Severus
Julia Avita Mamaea, mother of Roman Emperor Alexander Severus
Varius Avitus Bassianus, later Marcus Aurelius Antoninus Augustus, the emperor Elagabalus who reigned 218–222
Flavius Avitus Marinianus, consul in 423
Marcus Maecilius Flavius Eparchius Avitus, the emperor Avitus who reigned 455–456
Avitus of Vienne, a Gallo-Roman bishop and saint who died in the early 6th century
