Cognomen สลาก (Salak 
, สลาก 
) , in the entire world, is quite a common last name. The surname สลาก is habitual in Estonia, where it is quite a rare surname, Serbia, and Slovakia. In absolute terms, it most frequently occurs in India, Philippines, and the United States. Likewise, สลาก is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Salak | Philippines, Poland, United States, India, Indonesia |
| สลาก | Thailand |