Surname សមិទ្ធិ (សមិទ្ធិ 
) , in the entire world, is an extremely rare cognomen. The last name សមិទ្ធិ is habitual in South-eastern Asia, particularly Cambodia, where it is a very rare surname. More prevalently, សមិទ្ធិ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| សមិទ្ធិ | Cambodia |