Surname แสงกระจ่าง (แสงกระจ่าง, Sangkrachang 
, Sangkrajang ) , across the world, is a rare cognomen. The cognomen แสงกระจ่าง is characteristic of Thailand, where it is quite a rare surname, the United Kingdom, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Sangkrachang | Thailand, United States |
| Sangkrajang | Thailand |
| Saengkrachang | Thailand, United Kingdom |
Saengkajai, Saengkrajai, Saengkrajang, Saengkrajay, Saenglrachang, Sangkrajay, Seangkrachang, Seangkrajang, and Sengjaksai