Caio
A boys’ name of Latin origin, meaning rejoice; from Gaius.
Caio by the numbers
In 2025, 36 babies in England and Wales were named Caio. In the US, 24 were, though that figure is from 2017, the most recent full year we hold.
For the size of the two countries, it is given several times more often in England and Wales than in the US.
Its American peak was 32 babies in 2007, making it a 2000s name.
Other names that come from Gaius
Like Caio, each of these traces back to Gaius: a form of it, a name built from it, or a son or daughter of it. Not always the same sex.
Spelled almost the same
Other names in the records within a letter or two of Caio. Close spellings are not always related names, but they are usually worth seeing together.
- Cairothe victorious; from al-Qahira; place name used as given name93 in England and Wales (2025)
- Cainacquired possession262 in the US (2017)
- Cairejoice or celebrate52 in England and Wales (2025)
- Catokeen or sharp; Roman family name21 in the US (2017)
- Cayokey or small island5 in the US (2017)
- Cario6 in the US (2017)
Sounds like Caio
Names that are said the same way as Caio, however they are written. Sounding alike does not mean they share a history.
Other names that mean joy
Like Caio, each of these has joy in its meaning. Different names, different histories, the same idea.
- Asherhappy, blessed6,076 in the US (2017)
- Edendelight, paradise594 in England and Wales (2025)
- Felixhappy; fortunate811 in England and Wales (2025)
- Tatumcheerful or bringer of joy1,159 in the US (2017)
- Joyjoy; gladness and pleasure971 in the US (2017)
- Winstonwine town; joy stone; place name785 in the US (2017)
Names about as common as Caio
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