Cai vs Octavius

Baby Name Comparison — 2026

Cai

Boy #1,906 Most Popular 1 Syllable

"rejoice, delight"

Origin: Latin via Welsh

Welsh Chinese English

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Boy #2,013 Most Popular 4 Syllables

"eighth-born"

Origin: Latin

Roman English American Italian

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Cai Rank #1,906

Octavius Rank #2,013

Cai is more popular, ranked #1906 vs #2013 for Octavius.

Is Cai or Octavius more popular?

Cai is more popular, ranked #1906 compared to Octavius at #2013 in the United States.

What do Cai and Octavius mean?

Cai means "rejoice, delight" (Latin via Welsh origin). Octavius means "eighth-born" (Latin origin).

Are Cai and Octavius boy or girl names?

Cai is primarily a boy name. Octavius is primarily a boy name.