John Walker, New Zealand runner and politician
Sir John George Walker, (born 12 January 1952) is a former middle-distance runner from New Zealand who won the gold medal in the men's 1500 m event at the 1976 Olympics. He was also the first person to run the mile in under 3:50. In more recent years, Walker has been active in local government, as an Auckland Councillor and representing the Manurewa-Papakura ward.