Kaio vs Oliver

Baby Name Comparison — 2026

Kaio

Boy #4,096 Most Popular 2 Syllables

Meaning

"rejoice, be happy"

Origin: Latin

Cultural Roots

Brazilian Portuguese Japanese American

Quick Stats

Popularity Rank
#4,096
Total SSA Count
26
Syllables
2
Formality
Moderate
Nicknames
Kai

Playground Safety Score

✓ All Clear
Full profile for Kaio →

Oliver

Boy #3 Most Popular 3 Syllables

Meaning

"olive tree"

Origin: Latin

Cultural Roots

English French Scandinavian

Quick Stats

Popularity Rank
#3
Total SSA Count
15,343
Syllables
3
Formality
Moderate
Nicknames
Ollie, Oli

Playground Safety Score

✓ All Clear
Full profile for Oliver →

Popularity Comparison

Kaio Rank #4,096
Oliver Rank #3

Oliver is more popular, ranked #3 vs #4096 for Kaio.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Kaio ___

  • Kaio James
  • Kaio Lee
  • Kaio Andre
  • Kaio Marcus
  • Kaio Zen
  • Kaio Cole

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 Kaio

Kai Luca Mateus Theo Noa

If you choose Oliver

Olivia Charlotte Emma Sophia Amelia

Which Name Fits Your Family?

Answer 3 quick questions and we'll help you decide.

1. Which style feels more like your family?

Frequently Asked Questions

Is Kaio or Oliver more popular?

Oliver is more popular, ranked #3 compared to Kaio at #4096 in the United States.

What do Kaio and Oliver mean?

Kaio means "rejoice, be happy" (Latin origin). Oliver means "olive tree" (Latin origin).

Are Kaio and Oliver boy or girl names?

Kaio is primarily a boy name. Oliver is primarily a boy name.

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