Cognomen Yan Kai (Yan Kai 
) , in the entire world, is a very rare family name. The cognomen Yan Kai is characteristic of Singapore, where it is a rare surname, Malaysia, where it is a very rare surname, and South Africa, where it is an extremely rare surname. More frequently, Yan Kai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yan Kai | Singapore, South Africa, Malaysia |