Last name แสงเธียร (แสงเธียร 
) , in the world, is a very rare surname. The last name แสงเธียร is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, แสงเธียร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| แสงเธียร | Thailand |