In all the world, ชัยสุ (Chaisu 
, ชัยสุ , Chaisur) is a very rare boy's forename. The first name ชัยสุ is characteristic of Southern Asia, particularly India, where it is an extremely rare boy's name. More prevalently, ชัยสุ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Chaisu | India, United States, Thailand, Malaysia |
| ชัยสุ | Thailand |