Cognomen Prayai (Prayai 
) , in all the world, is a very rare last name. The family name Prayai is characteristic of Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Likewise, Prayai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Prayai | India, Thailand |