Cognomen สุนทรทอง (Saythanthong 
, สุนทรทอง , Sunthonhong ) , around the globe, is a very rare surname. The cognomen สุนทรทอง is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, สุนทรทอง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Suntorntong, สุนทรทอง, Sunthonhong, Saythanthong | Thailand |
Soonthonthong, Soonthornhong, Soonthornthong, and Sunthornhong