Caio vs Blu

Baby Name Comparison — 2026

Caio

Boy #3,730 Most Popular 3 Syllables

"to rejoice, to be glad"

Origin: Latin

Brazilian Portuguese Italian Roman

✓ All Clear

Boy #3,793 Most Popular 1 Syllable

"the color blue, sky"

Origin: Old French 'bleu' via Germanic

American English Italian

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Caio Rank #3,730

Blu Rank #3,793

Caio is more popular, ranked #3730 vs #3793 for Blu.

Is Caio or Blu more popular?

Caio is more popular, ranked #3730 compared to Blu at #3793 in the United States.

What do Caio and Blu mean?

Caio means "to rejoice, to be glad" (Latin origin). Blu means "the color blue, sky" (Old French 'bleu' via Germanic origin).

Are Caio and Blu boy or girl names?

Caio is primarily a boy name. Blu is primarily a boy name.