Cognomen Boonkhan (Boonkhan 
) , throughout the world, is a rare last name. The surname Boonkhan is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
Put, Nuttapong, Jittraporn, Noppadon, Techinee, Donrudee, Palakorn, Kamollak, Uratsaya, Wiparat, Nantiya, Taksina, Tanawan, Jutamas, Lampoon, Penvisud, Chayapa, Sopanat, Siriwan, Sarinya, Wanisa, Wandee, Jirayu, Prapit, Charun, Aomsin, Sutad, Sanit, Chawengsak, and Damrongrak