Banthoon Lamsam born 15 January 1953 is a Thai business executive and the successor to the family business, Lamsam. He is the son of Bancha Lamsam and M.R. Sam-angwan Lamsam (maiden name Devakula; half-sister of M.R. Pridiyathorn Devakula). The Lamsam Family is one of the wealthiest and most powerful families in Thailand.[4] Bantoon is Lamsam 5th generation and heading family's banking and insurance flagship. He is currently the Chairman of the Board and Chief Executive Officer of Kasikornbank, the top financial service provider group in Thailand.