Caio vs Liam

Baby Name Comparison — 2026

Caio

Boy #3,730 Most Popular 3 Syllables

Meaning

"to rejoice, to be glad"

Origin: Latin

Cultural Roots

Brazilian Portuguese Italian Roman

Quick Stats

Popularity Rank
#3,730
Total SSA Count
30
Syllables
3
Formality
Moderate
Nicknames
Kai, Ca

Playground Safety Score

✓ All Clear
Full profile for Caio →

Liam

Boy #1 Most Popular 2 Syllables

Meaning

"strong-willed warrior"

Origin: Irish

Cultural Roots

Irish English American

Quick Stats

Popularity Rank
#1
Total SSA Count
22,164
Syllables
2
Formality
Moderate
Nicknames
Lee

Playground Safety Score

✓ All Clear
Full profile for Liam →

Popularity Comparison

Caio Rank #3,730
Liam Rank #1

Liam is more popular, ranked #1 vs #3730 for Caio.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Caio ___

  • Caio Alexandre
  • Caio Felipe
  • Caio Henrique
  • Caio Lucas
  • Caio Rafael
  • Caio Miguel

Liam ___

  • Liam James
  • Liam Alexander
  • Liam Thomas
  • Liam Michael
  • Liam Patrick
  • Liam Joseph

Sibling Name Ideas

Names that pair well as siblings.

If you choose Caio

Enzo Mateus Pedro Giovanna Isadora

If you choose Liam

Olivia Emma Noah Charlotte Sophia

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 Caio or Liam more popular?

Liam is more popular, ranked #1 compared to Caio at #3730 in the United States.

What do Caio and Liam mean?

Caio means "to rejoice, to be glad" (Latin origin). Liam means "strong-willed warrior" (Irish origin).

Are Caio and Liam boy or girl names?

Caio is primarily a boy name. Liam is primarily a boy name.

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