Cognomen Damchuay (Damchuay 
) , in the world, is a rare last name. The surname Damchuay is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
Arun, Phumphithak, Natchapon, Papichaya, Katanyutita, Muncharin, Tapakorn, Phatpitcha, Supannee, Yolsiri, Wassana, Napalai, Punyisa, Maitree, Yothin, Thawil, Raluek, Apidet, Adiwan, Sudjai, Pattamanatda, and Pattharawan