Cognomen เพชรโยธา (เพชรโยธา 
) , around the globe, is a rare surname. The cognomen เพชรโยธา is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, เพชรโยธา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เพชรโยธา | Thailand |