Caio vs Cy

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 #2,349 Most Popular 1 Syllable

"sun, shepherd"

Origin: Old Persian (via Cyrus)

American Western Persian

✓ All Clear

Caio Rank #3,730

Cy Rank #2,349

Cy is more popular, ranked #2349 vs #3730 for Caio.

Is Caio or Cy more popular?

Cy is more popular, ranked #2349 compared to Caio at #3730 in the United States.

What do Caio and Cy mean?

Caio means "to rejoice, to be glad" (Latin origin). Cy means "sun, shepherd" (Old Persian (via Cyrus) origin).

Are Caio and Cy boy or girl names?

Caio is primarily a boy name. Cy is primarily a boy name.