Surname แสงทาย (แสงทาย 
) , throughout the world, is an extremely rare family name. The last name แสงทาย is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, แสงทาย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| แสงทาย | Thailand |