Cognomen Wiwatthirakun (Wiwatthirakun 
) , all over the world, is a very rare surname. The family name Wiwatthirakun is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
Khemika, Phethai, Tuanjai, Peeraphat, Pringpreaw, and Phringphraew