Last name ธนประสิทธิ์ (Tanaprasit 
, ธนประสิทธิ์ , Thanaprasit ) , globally, is an extremely rare family name. The family name ธนประสิทธิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, ธนประสิทธิ์ is the forename as well as the last name.