Kai - Name Meaning and Origin

The boy's and girl's name Kai \kai\ is pronounced kye. It is of Welsh, Scandinavian and Greek origin, and its meaning is "keeper of the keys; earth". Variant of Kay. Also possibly (South African) "beautiful". Kai is also a Hawaiian name meaning "the sea".

Kai has 2 variant forms: Keh and Kye.

Baby names that sound like Kai are Cai, Kaye, Caio, Gay, Kauai, Kawai and Key.

Kai is a very rare male first name and a popular surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the boy's name Kai. Click here to compare Kai with related baby names.