Kai - name meaning and origin

The boy's name Kai \kai\, also used as girl's name 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. Compare Kai with related baby names.