Cognomen พรสิทธิ (พรสิทธิ 
) , worldwide, is a very rare surname. The surname พรสิทธิ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, พรสิทธิ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พรสิทธิ | Thailand |