Caio vs Nero

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 →

Popularity Comparison

Caio Rank #3,730
Nero Rank #3,831

Caio is more popular, ranked #3730 vs #3831 for Nero.

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

Nero ___

  • Nero Alessandro
  • Nero Marco
  • Nero Julius
  • Nero Adrian
  • Nero Valentino

Sibling Name Ideas

Names that pair well as siblings.

If you choose Caio

Enzo Mateus Pedro Giovanna Isadora

If you choose Nero

Caesar Marcus Octavia Livia Augustus

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 Nero more popular?

Caio is more popular, ranked #3730 compared to Nero at #3831 in the United States.

What do Caio and Nero mean?

Caio means "to rejoice, to be glad" (Latin origin). Nero means "strong, vigorous" (Sabine origin).

Are Caio and Nero boy or girl names?

Caio is primarily a boy name. Nero is primarily a boy name.

More Comparisons

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← Full profile: Caio ← Full profile: Nero Browse all baby names