Cognomen Kosonwitthayatham (Kosonwitthayatham 
) , around the globe, is a very rare last name. The family name Kosonwitthayatham is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Kosonwitthayatham is the forename as well as the last name.
Suphat, Mongkhon, Kanyarat, and Chanokphat