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