Surname ยศคำ (ยศคำ, Yotkum 
, Yoskham 
) , globally, is a very rare family name. The surname ยศคำ is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Yotkum | Thailand |
| Yoskham | United States, Thailand |