Jason Cook (born 27 February 1975 in Maesteg, Wales) is a former professional boxer, who fought under the nickname "The Power".

He won a silver medal in the featherweight (57 kg) class at the 1994 Commonwealth Games in Victoria, British Columbia, Canada.

[2] Cook's professional boxing career began in October 1996, with a second-round stoppage of Brian Robb, followed by further KO victories over Andrew Reed and David Kirk before being taken the distance on two occasions by Marc Smith.

Victories over journeymen David Hinds and Peter Buckley led to Cook receiving a shot at the vacant Welsh Area light welterweight title.

Victories over Harry Butler, Andrei Sinepupov, Keith Jones, Assen Vassilev, and Dariusz Snarski followed, before a prison sentence momentarily ended Cook's boxing career.

In 2001, Cook was found guilty of credit card fraud whilst working as a postman and was jailed for 15 months.

On 23 July 2002, following the withdrawal of Bobby Vanzie, Cook was offered the chance to fight Sandro Casamonica in Italy for the vacant European lightweight title.

Cook had started the fight well but was floored in the 3rd by a straight right hand, and a follow-up attack from Rios forced referee Richard Davies to stop the contest.

[13] In September, 2006, after pulling out of a fight with Giuseppe Lauri for the vacant European light welterweight title, Cook announced his retirement from boxing.

I've had so much trouble with the shoulder over the years and tendonitis in an ankle which flares up when I do roadwork that I can't carry on at the top level.

Also involved in the competition is fellow Welshman and former world champion Gavin Rees, a fighter from Enzo Calzaghe's boxing stable.

The brave comeback performance by Cook earned him a shot at the British Light-Welterweight Title against Lenny Dawes Jason Cook challenged Lenny Dawes for the British Light-Welterweight Title on 12 February 2010 at York Hall, Bethnal Green in London.