Family name เสริมบุญยสุข (เสริมบุญยสุข 
) , in the entire world, is a very rare last name. The surname เสริมบุญยสุข is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| เสริมบุญยสุข | Thailand |