Kongkiat Khomsiri, nicknamed Khom, is a Thai director and screenwriter. He graduated from the Faculty of Mass Communications at Bangkok University and started his career as a crew member on Mysterious Object at Noon, the first feature film by Apichatpong Weerasethakul.

He then went to work for Five Star Production, working with director Thanit Jitnukul on the films Bang Rajan and Kunpan: Legend of the Warlord. He made his directorial debut in 2005 with Art of the Devil 2, credited as part of the seven-member "Ronin Team" of directors. His solo directorial debut was Muay Thai Chaiya in 2007.