Sahamongkol Film International Co. Ltd. (Thai: บริษัท สหมงคลฟิล์ม จำกัด, also Sahamongkolfilm or Mongkol Film) is a Thai motion picture production and distribution company. It is the leading movie company in Thailand, ahead of GMM Grammy's GMM Tai Hub, Five Star Production and RS Film.
The company is privately owned and run by its founder and chief executive, Somsak Techaratanaprasert, who is also known as "Sia Jiang". The company's films include the international hit martial arts films, Ong-Bak: Muay Thai Warrior, Tom-Yum-Goong and Chai Lai, and the Nak animated movie, as well as recent romantic comedy hit drama film First Love. It distributes foreign films in Thailand through its Mongkol Major distribution company.