Around the world, Buachai (Buachai 
) is a very rare largely masculine, but infrequently female forename. The first name Buachai is habitual in South-eastern Asia, particularly Thailand, where it is a very rare mostly masculine, but seldom girly name. Much more prevalently, Buachai is the last name as well as the forename.
Wan, Bawornphak, Nanthawan, Kodchakon, Benchamas, Chuthamat, Nongluck, Thipwipha, Thadakron, Tawantai, Jiraporn, Rachanon, Kanokwan, Namchai, Khamron, Chayada, Champen, Onkanya, Orapin, Jirasa, Prajob, Prakit, Kitiya, Kusuma, Warin, Samai, Munta, Jade, Kreangkrai, and Duangruetai