Surname ท้าวประสิทธิ์ (ท้าวประสิทธิ์, Thaowprasit 
) , across the world, is an extremely rare family name. The surname ท้าวประสิทธิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Thaowprasit | Thailand |