Michael Shane Campbell, CNZM (born 23 February 1969) is a retired New Zealand professional golfer who is best known for having won the 2005 U.S. Open and the richest prize in golf, the £1,000,000 HSBC World Match Play Championship, in the same year. He played on the European Tour and the PGA Tour of Australasia.Ethnically, he is predominantly Māori, from the Ngati Ruanui (father's side) and Nga Rauru (mother's side) iwi.