Surname วิริยะวรรณ (Viriyawan 
, วิริยะวรรณ ) , in all the world, is a very rare last name. The surname วิริยะวรรณ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, วิริยะวรรณ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Viriyawan | United States, Thailand |
| วิริยะวรรณ | Thailand |