Last name Samatchaya (Samatchaya 
) , around the world, is an extremely rare cognomen. Much more prevalently, Samatchaya is the forename as well as the last name.
Likit, Kingkaew, Pakkasang, Duangrat, Thongkum, Thongdee, Inthajak, Weerasak, Assawanives, Chanawonno, Butchachibong, Kitprasert, Phiantham, Pukkarasupasakda, Rueangrat, Jindatham, Thanomsin, Thonglert, Niyomthai, Sawangwong, Ratanaubolchai, Vitoorapakorn, Khaotrakul, Moonchanabart, Kaisongsiri, Sittisak, Mattip, Kamjai, Pumpin, Robkob, Nuiyen, Wesruangsanti, Satsoong, Saechan, Srimala, Chulthong, Kanesri, Kiewyoy, Krueanet, Kruanet, Ponchai, Leeprajong, Limvathanalert, Wongyai, Mojanakul, Sarikaboot, Saisakon, Kammarbut, and Jiracharoenwong