Family name Thirawat (ธีรวัฒน์ 
, ธีระวัฒน์ , ถิรวัฒน์ , among others...) , across the world, is quite a rare cognomen. The surname Thirawat is habitual in Thailand, where it is quite a rare surname, Malaysia, where it is an extremely rare surname, and the United States. Much more prevalently, Thirawat is the forename as well as the last name.