Family name แสงตะวัน (แสงตะวัน 
, Sangtawan 
, Saengtawan ) , in all the world, is quite a rare last name. The family name แสงตะวัน is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname. Likewise, แสงตะวัน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| แสงตะวัน | Thailand |
| Sangtawan, Saengtawan | United States, Thailand |
Aumtawan, Saengdawn, Saengtavilap, Saengtaw, Saengtawon, Saengthawan, Sangtawon, Sangtawong, Sangthaon, Sangthawan, Seangathituthai, Seangswang, Seangtawan, Seangthawan, Sengtavan, Sengtavon, Sengtawan, and Weawtawan