Surname ขยัน (Khayan 
, ขยัน , Diligent 
) , throughout the world, is quite a rare cognomen. The surname ขยัน is characteristic of Thailand, where it is quite a rare surname, Philippines, and France, where it is a rare surname. Very seldom, ขยัน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khayan | Myanmar, Thailand, Indonesia, United States, Malaysia |
| ขยัน | Thailand |
| Diligent | Czechia, United States, Sri Lanka, India, France |
| Dilig | Thailand, United States, Malaysia, Philippines, India |
|
ขยัน วิพรหมชัย Thai politician, TH (b. 1960) |
|