Blu vs Caio

Baby Name Comparison — 2026

Blu

Boy #3,793 Most Popular 1 Syllable

"the color blue, sky"

Origin: Old French 'bleu' via Germanic

American English Italian

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Boy #3,730 Most Popular 3 Syllables

"to rejoice, to be glad"

Origin: Latin

Brazilian Portuguese Italian Roman

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Blu Rank #3,793

Caio Rank #3,730

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

Is Blu or Caio more popular?

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

What do Blu and Caio mean?

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

Are Blu and Caio boy or girl names?

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