Throughout the world, ภัทรประสิทธิ์ (ภัทรประสิทธิ์ 
, Pattrapasit , Phatraprasit 
) is an extremely rare unknown gender forename. Much more prevalently, ภัทรประสิทธิ์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Phatprasit, Pattrapasit, ภัทรประสิทธิ์ | Thailand |
| Phatraprasit | Thailand, United States |
Patprasitta, Patprasittha, Pattarapasit, Pattaraprasit, Pattraprasit, Phataraprasit, Phattharaprasit, and Phattraprasit