Family name เล็กสมบูรณ์สุข (เล็กสมบูรณ์สุข 
) , in the world, is an extremely rare surname. The last name เล็กสมบูรณ์สุข is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| เล็กสมบูรณ์สุข | Thailand |