Last name ธีรเศรษฐ (Theeraset 
, Thiraset , ธีรเศรษฐ ) , in the world, is an extremely rare cognomen. The last name ธีรเศรษฐ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, ธีรเศรษฐ is the forename as well as the last name.
วิรยศิริ, and พัฒน์วราพงษ์