Last name สมหลัก (สมหลัก 
) , across the world, is a very rare surname. The family name สมหลัก is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, สมหลัก is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สมหลัก | Thailand |