Family name ธนเศรษฐ (Thanaset 
, ธนเศรษฐ ) , across the world, is a very rare cognomen. The family name ธนเศรษฐ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, ธนเศรษฐ is the forename as well as the last name.