Family name Chai Yo (ไชยโย 
, Chai Yo ) , around the globe, is quite a rare last name. The cognomen Chai Yo is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname. Much less frequently, Chai Yo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ไชยโย, Chai Yo | Thailand |