Colin Milton Kay CBE JP (30 October 1926 – 5 June 2008) was a New Zealand sportsman and politician. He was the 34th Mayor of Auckland City, elected for one term serving from 1980 to 1983, and chairman of the Auckland Regional Council from 1986 to 1992. He was also the triple jump champion of New Zealand in 1950 and 1951, and represented New Zealand at the 1950 Empire Games in Auckland.