Family name Soratja (Soratja 
) , across the world, is an extremely rare surname. Much more prevalently, Soratja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Soratja | Thailand |
Promsen, Pormsen, Klaichim, Chansrisukot, Rattanaphan, and Prajongsangsri