Last name แสงจัน (Saengchan 
, แสงจัน ) , around the world, is quite a rare family name. The family name แสงจัน is characteristic of Thailand, where it is quite a rare surname, Finland, where it is a rare surname, and Malaysia, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Thailand, Finland, and the United States. Very seldom, แสงจัน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Saengchan | Finland, United States, Germany, Malaysia, Thailand |
| แสงจัน | Thailand |