Throughout the world, เทพประสิทธิ์ (เทพประสิทธิ์ 
, Thepprasit 
, Theprasit ) is a rare principally masculine, but scarcely girly given name. The forename เทพประสิทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare principally male, but very infrequently girly name. Likewise, เทพประสิทธิ์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Theepprasan, เทพประสิทธิ์, Theprasit | Thailand |
| Thepprasit | Singapore, Canada, United States, Thailand |
Detpaoprasert, Dhepparath, Dhepprasit, Tepprasit, Teprasit, Tetpasit, Theepprasarn, Thekprasit, Thekprsit, Thepprasan, Thepprasane, Thepprasith, Thepprasitt, Theprasmee, Thetprasit, Thetprasith, Thuppraseat, Thupprasit, and Twapprasit