What does the name Kai mean? The meaning of the name Kai is Ocean. The origin of the name Kai is Polynesian/Hawaiian. This is the culture in which the name originated, or in the case of a word, the language.
Alternate spellings: Ky
People who like the name Kai also like: Liam
, Declan Kaia
Name Notes: Or the Welsh form of Caius. Pronounced "Kye"