Boy Name · Latin Origin
Octavius
Octavius is a boy's name whose meaning is not firmly attested in the historical record. It is a boy's name of Latin origin, and it is rare in the United States today — outside the SSA top 1,000.
Origin and meaning: English Wiktionary (CC BY-SA 4.0). Popularity: US Social Security Administration.
Octavius — a boy name from the Latin tradition — is an uncommon, standout choice. If Octavious is on your shortlist, Octavius belongs in the same conversation.
Octavius meaning, origin, and usage
Meaning: Octavius has a distinctive sound and evolving modern usage.
Origin: Latin naming roots help connect Octavius to related Latin baby names.
Pronunciation: Baby Name Studio pronounces Octavius as O·C·T·A·V·I·U·S, with 8 letters and a boy usage profile.
Popularity: According to Baby Name Studio's 2026 tracker, Octavius is an uncommon, standout choice in the Rare tier.
Octavius variants, nicknames, middle names, and sibling names
- Variants and spelling ideas: Octaviusa, Octaviuse, Octaviusy, Octaviu.
- Nicknames: Octa and O.
- Middle names: Pair Octavius with a middle name that balances its substantial sound; start with the Octavius middle name generator.
- Sibling names: Octavious, Octavio, Octavia, Octaviano, Octave — full picks on the sibling names for Octavius guide for a cohesive sibset.
- Similar names: Looking for names that sound like Octavius? Browse our names like Octavius guide for phonetic-neighbor picks.
- Explore more: use the Baby Name Explorer, name search, AI name generator, and Baby Name Studio homepage.
Frequently asked about Octavius
What does the name Octavius mean?
Octavius has no single meaning that is firmly attested in the historical record. It is used as a boy name in US birth records, and parents usually choose it for its sound rather than a documented meaning.
What is the origin of Octavius?
Octavius originates in Latin naming tradition.
How do you pronounce Octavius?
Octavius has 8 letters and is most commonly stressed on the first syllable.
Is Octavius a boy's or girl's name?
Octavius is primarily used as a boy's name in US records.
How popular is Octavius in 2026?
In our 2026 popularity tracker, Octavius sits in the Rare tier — an uncommon, standout choice.
What names are similar to Octavius?
Names that share Octavius's sound and style include Octavious, Octavio, Octavia, Octaviano, Octave.
What middle names pair well with Octavius?
Good middle-name fits for Octavius pair an opposite syllable rhythm: if Octavius is short, lean longer (e.g. classical or three-syllable middles); if Octavius is longer, a one-syllable middle keeps the full name from feeling heavy.
What are good sibling names for Octavius?
Sibling names that pair naturally with Octavius share its rhythm without rhyming — Octavious, Octavio, Octavia all sit comfortably alongside it on a shortlist.