Chuck Liddell (Santa Barbara, December 17, 1969) is a former fighter of mixed martial arts from US. It was the UFC light heavyweight champion weights between 2005 and 2007, defeating the champion Randy Couture and then defending the title for 4 consecutive times until the defeat suffered against Quinton "Rampage" Jackson.
He acted as a coach in the first and 11th season of the reality show The Ultimate Fighter, and in the past has also struggled in the prestigious Japanese promotion Pride taking part in the Pride Middleweight Grand Prix 2003 tournament coming again defeated by Quinton Jackson. Liddell has considerable experience in Kempo Karate and Koei-Kan Karate with a record of 20-2 with 16 knockout in kickboxing. It is also a former champion at the university level fighting.