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Caio meaning and name origin
Caio \caio\ as a boy's name is a variant of Caeo (Welsh), Cai (Welsh), Caius (Latin) and Gaius (Latin), and the meaning of Caio is "happy".
The baby name Caio sounds like Cayo, Kai and Caw. Other similar baby names are Cain, Cairo and Cato.
View a list of the 4 names that reference Caio.
Popularity of Caio
Caio is not a popular first name for men and an equally uncommon surname or last name for all people. (1990 U.S. Census)
Displayed below is the baby names popularity of the name Caio for boys. (2010 statistics) Compare Caio with its source forms and related boy baby names.