Surname ประยูรศิริ (ประยูรศิริ 
, Prayunsiri ) , across the world, is a very rare cognomen. The surname ประยูรศิริ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, ประยูรศิริ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Prayunsiri, ประยูรศิริ | Thailand |