Last name Sornwilai (Sornwilai 
) , throughout the world, is an extremely rare cognomen. The cognomen Sornwilai is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much less frequently, Sornwilai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sornwilai | Thailand |