Around the world, พิเศษสุด (พิเศษสุด 
) is a very rare unisex first name. The given name พิเศษสุด is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare epicene name.
| VARIANT | COUNTRY |
|---|---|
| พิเศษสุด | Thailand |
วุฒิสุขไพศาล, and ดีประสิทธิ์