Family name ขอประเสริฐสุข (ขอประเสริฐสุข 
) , around the world, is a very rare last name. The cognomen ขอประเสริฐสุข is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ขอประเสริฐสุข | Thailand |