Last name Sudthirak (Sudthirak 
) , across the world, is an extremely rare family name. The surname Sudthirak is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, Sudthirak is the forename as well as the last name.
Thorpe, Yokyong, Kheawkhao, and Saricharoedkun