Family name เลิศไพศาล (Excellent 
, เลิศไพศาล 
, Lertpaisan 
) , all over the world, is quite a rare surname. The family name เลิศไพศาล is characteristic of Latin America and the Caribbean, particularly Haiti, where it is quite a rare surname, Jamaica, and the Dominican Republic, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Haiti, Indonesia, and Nigeria. More frequently, เลิศไพศาล is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Excellent | Haiti, Myanmar, South Africa, Indonesia, Democratic Republic of the Congo |
| เลิศไพศาล, Lertphaisan | Thailand |
| Lertpaisan | United States, Thailand |
Leartpaisan, and Lerdpaisarn