Last name ธัญญภักดิ์ (Thanyapak 
, ธัญญภักดิ์ , Thanyupak ) , in all the world, is a very rare family name. The surname ธัญญภักดิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, ธัญญภักดิ์ is the forename as well as the last name.