Surname พิลัยวรรณ (พิลัยวรรณ 
) , around the world, is a very rare last name. The surname พิลัยวรรณ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, พิลัยวรรณ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พิลัยวรรณ | Thailand |