Family name Chidjai (Chidjai 
) , in the entire world, is an extremely rare last name. The cognomen Chidjai is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, Chidjai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chidjai | United States, Thailand |
Pranue, Jarurojjinda, and Fleshman