Cognomen Binchai (บินชัย 
, Binchai 
) , all around the world, is a rare last name. The family name Binchai is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname, and Malaysia, where it is an extremely rare surname. Much less frequently, Binchai is the forename as well as the last name.
Tiara, Timonthy Anak, Jaroenchai, Piyawadee, Pimchanok, Kotchabhorn, Sittichai, Sakoolrat, Parattakorn, Nopparat, Siddipon, Nittaya, Rungrat, Prateep, Sasaluk, Sakjuta, Kampol, Pasakorn, and Patcharaporn