Shane "Choppa" Chapman (born 4 July 1978) is a New Zealand super middleweight kickboxer and boxer, fighting out of City Lee Gar Gym in Auckland.
Between 1995 and the latter half of 1997 he had a successful amateur career on the local circuit, winning 8 out of 9 fights and picking up the New Zealand North Island and South Pacific titles at super welterweight.
On 18 September 1997 he made his professional Muay Thai debut defeating Norm Graham over 5 rounds at a domestic event in Auckland, New Zealand.
His record ended on 15 August 2001 where he was stopped in the final of the Judgement 2 tournament by multiple Muay Thai and kickboxing world champion Daniel Dawson.
Later that year he entered the second ever K-1 MAX New Zealand event, making the final but losing to Jordan Tai by a close split decision after three rounds.
He lost his next couple of SuperLeague fights to Yoshihiro Sato and Kamal El Amrani but did manage to win his third world title – claiming the W.K.B.F.
His winning streak ended at the elimination round in Tokyo, where he lost to rival and close friend John Wayne Parr in the last match of their trilogy of fights.