Cognomen สมัค (Smak 
, สมัค 
) , in the entire world, is quite a rare last name. The cognomen สมัค is characteristic of Netherlands, where it is a rare surname, Poland, and Czechia. In absolute terms, it most frequently occurs in Poland, Egypt, and Netherlands. Likewise, สมัค is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Smak | Morocco, Netherlands, Egypt, Indonesia, Poland |
| สมัค | Thailand |