Matt Thornton (born March 25, 1969) is a mixed martial artist and trainer.
He is the founder of Straight Blast Gym International (SBGI), an association of over 35 gyms worldwide engaged in training athletes in Brazilian jiu-jitsu, wrestling, boxing.
Muay Thai, and mixed martial arts, based in Portland, Oregon.
He is well known in the martial arts community for his formulation and promotion of the concept of "aliveness" in training, as well as for being one of the first gyms to feature cross training in boxing and other fighting sports at the beginning of the growth of the sport of Mixed Martial Arts in the 1990s.
He was among the first American-born practitioners to receive a black belt in Brazilian Jiu Jitsu.
He is a 4th degree black belt under Chris Haueter.