Gaius Octavius was a name used for men among the gens Octavia. Gaius was one of the four chief praenomina used by the Octavii, the other three being , and . The most celebrated member was the dictator Gaius Julius Caesar's great-nephew and adoptive son, who later became the first Roman Emperor, famously known as Augustus.
Gaius Octavius also refers to men from several families of the gens Octavia:
Relatives of Augustus, member of the so-called Octavii Rufi:
Members of other families: