Family name Petchuay (Petchuay 
) , around the world, is a rare last name. The cognomen Petchuay is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
Saree, Methiwat, Sirichai, Suradetch, Amornrat, Chidhathai, Kaniknan, Worapol, Kittisak, Tanapatee, Teerapat, Sureeporn, Artchawit, Thanasiri, Nattapong, Patteera, Prachyapan, Onanong, Kriddesak, Sutep, Panus, Pitak, Jarun, Juree, Sirima, Jureekorn, Somsak, Petdet, Petduan, Lalita, Nammon, Surasak, Chawisa, Pakdee, and Phacharaon