Surname วิริยะโกศล (Viriyakosol 
, วิริยะโกศล , Viriyagoson ) , around the world, is a rare cognomen. The surname วิริยะโกศล is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Viriyakosol | Thailand, United States |
| Wiriyacosol, Viriyagoson, วิริยะโกศล | Thailand |