Caius vs Oliver

Baby Name Comparison — 2026

Caius

Boy #1,063 Most Popular 2 Syllables

Meaning

"to rejoice, joyful"

Origin: Latin

Cultural Roots

Roman British European American

Quick Stats

Popularity Rank
#1,063
Total SSA Count
205
Syllables
2
Formality
Formal
Nicknames
Cai, Kai

Playground Safety Score

✓ All Clear
Full profile for Caius →

Popularity Comparison

Caius Rank #1,063
Oliver Rank #3

Oliver is more popular, ranked #3 vs #1063 for Caius.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Caius ___

  • Caius James
  • Caius John
  • Caius Edward
  • Caius William
  • Caius Alexander
  • Caius Thomas

Oliver ___

  • Oliver James
  • Oliver Thomas
  • Oliver William
  • Oliver Henry
  • Oliver John
  • Oliver Benjamin

Sibling Name Ideas

Names that pair well as siblings.

If you choose Caius

Livia Augustus Felix Octavia Marcus

If you choose Oliver

Olivia Charlotte Emma Sophia Amelia

Which Name Fits Your Family?

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1. Which style feels more like your family?

Frequently Asked Questions

Is Caius or Oliver more popular?

Oliver is more popular, ranked #3 compared to Caius at #1063 in the United States.

What do Caius and Oliver mean?

Caius means "to rejoice, joyful" (Latin origin). Oliver means "olive tree" (Latin origin).

Are Caius and Oliver boy or girl names?

Caius is primarily a boy name. Oliver is primarily a boy name.

More Comparisons

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← Full profile: Caius ← Full profile: Oliver Browse all baby names