Family name ស្មាច (ស្មាច 
) , all over the world, is a very rare last name. The last name ស្មាច is habitual in South-eastern Asia, particularly Cambodia, where it is a very rare surname. Likewise, ស្មាច is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ស្មាច | Cambodia |