Surname Boonthiang (Boonthiang 
) , globally, is a very rare cognomen. The cognomen Boonthiang is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Boonthiang is the forename as well as the last name.
Watus, Suparb, Pithan, Nongkan, Kornpichchayapha, Thimaporn, and Nartruedee