Cognomen Pariyai (ปริยัติ 
, Pariyai 
) , in the world, is a very rare last name. The surname Pariyai is habitual in Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. More frequently, Pariyai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ปริยัติ | Thailand |
| Pariyai | India, Thailand, Germany |