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Home › Baby Names Directory › Octavius

Octavius

♂ Boy

Pronounced ahk-TAY-vee-uhs /ɑk.ˈteɪ.vi.əs/Medium

Meaning: EighthMedium

In 30 seconds: Octavius is an Ancient Roman name meaning 'eighth'. It carries real imperial history, once borne by the man who became Augustus.
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Origin MediumAncient Roman [1]
MeaningEighth
U.S. rank (2025)#2073 ↘ Falling
2025 U.S. births72 boys (0.00% of U.S. boys)
Peak year1991
Total births (all-time)≈ 3,686

Popularity in the U.S. · SSA data

peak 199119112025

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Octavius means 'eighth' and comes from Ancient Rome, where it began as a family name tied to numbering. Its most famous bearer was Gaius Octavius, who rose to become Augustus, the first Roman emperor. That history gives the name a grand, classical authority.

Across Europe the root produced softer forms such as the Italian Ottavio, Portuguese Octávio and Otávio, and the French Octave. The full Latin ending lends Octavius a stately, ceremonial sound that the shorter variants trade away.

Did you know? The meaning usually attached to Octavius is 'eighth', and that core idea is what gives the name most of its long-term appeal.
Overall data confidence 78%
Behind the Name - Octavius — etymology, usage, pronunciation, and related formsU.S. Social Security Administration — 2024 popularity rank and count supplied in the batch input CSV

Variations

OctaveOttavioOktawiuszOctávioOtávio

Nicknames

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Famous Bearers

  • ★Gaius Octavius (Augustus) (63 BC–14 AD)
    Born Gaius Octavius, he became Augustus, the first Roman emperor and founder of the Roman Empire.

If you like Octavius…

Cornelius— lands in the same popularity range
Tiberius— another Ancient Roman [1] name
Caesar— lands in the same popularity range
Odysseus— lands in the same popularity range
Demetrius— lands in the same popularity range

Frequently Asked

What does the name Octavius mean?

Octavius is usually explained as meaning 'eighth' and is most often linked with Ancient Roman [1] tradition.

How do you pronounce Octavius?

It's commonly said ahk-TAY-vee-uhs /ɑk.ˈteɪ.vi.əs/.

Is Octavius a boy or girl name?

In this batch and in recent U.S. usage data, Octavius is used as a boy name.

How popular is Octavius?

In 2024, Octavius ranked #2020 in the U.S. for boys, with 76 births recorded.

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