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Gender: Male Meaning of Caio: "rejoice" Origin of Caio: Variation of Latin Caius

The name Caio is a boy's name of Latin origin meaning "rejoice". Caio and is often added to lists like The O Names and discussed in our forums with posts like "Love, Like, Lose -- Outlandish/Guilty Pleasures edition!".

From the experts:

Joyful-sounding name that makes a really original option.

Find other names based on Caio using our baby name generator.

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Famous People Named Caio

Caio Alves, Brazilian footballer
Caio Zampieri, Brazilian tennis player

Pop Culture References for the name Caio

A Basque version is Kaio.
Sounds like Caillou {KY-you}, character from cartoon of the same name