Cognomen Niamchan (Niamchan 
) , worldwide, is a very rare family name. The last name Niamchan is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
Teon, Suree, Adisak, Phinyo, Rupaka, Patipat, Janejira, Chutiphon, Sutthathip, Chatchanan, and Anchuleeporn