Octavia began as the Latin, then Victorian name for an eighth child. While there aren't many eighth children anymore, this ancient Roman name has real possibilities as a substitute for the overused Olivia; recommended for its combination of classical and musical overtones. It was chosen for his daughter by Kevin Sorbo.

With the rise of ancient Roman names, Octavian suddenly seem plausible again. A variation of Octavius and relative of the more modern Octavio, it's an equally attractive member of the trio.

Octavius, which was at one time used for the eighth child in a family, has the worn leather patina of all the ancient Roman names now up for reconsideration. As a Roman family name, it derives from the uncommon forename Octavus, which designated an eighth son.

What is so rare as a month named June? October – and November and December – are a lot rarer. Brisk and substantial, they're so much more memorable and modern than April or May. October got its name via being the eighth month in the old Roman calendar. Some related, more feminine variations are Octavia and Ottavia.

The most popular of the number names used by Hispanic parents, open to all. Octavia and Octavio are two Spanish baby names that are moving out into the wider world.

Cute, distinctive diminutive for this regal-sounding name.

Typically spelled Hachirō, with a macron over the O. It was historically given to the eighth son in a family, although these days eight sons is a rare occurrence.

Traditionally given to the eighth son in Japan. It can also be spelled Hachiro.

Variation of Octavia.

A more elaborate spin on the handsome Italian name Ottavio, from Latin Octavius.