Surname วิริยะประไพกิจ (วิริยะประไพกิจ, Viriyaprapaikij 
) , around the world, is an extremely rare cognomen. The cognomen วิริยะประไพกิจ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Viriyaprapaikij | Thailand |