Cognomen สจ. (Socho 
, สจ. 
) , globally, is a rare surname. The cognomen สจ. is habitual in Japan, where it is a rare surname, Israel, where it is a very rare surname, and Germany, where it is an extremely rare surname. More frequently, สจ. is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Socho | Japan, Germany, India, Israel, Venezuela |
| สจ. | Thailand |