Cognomen Kringkai (Kringkai 
) , in the entire world, is an extremely rare surname. The cognomen Kringkai is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, Kringkai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kringkai | Thailand |
Lakchai, Madonsin, and Wongharima