The New Zealand Olympic Committee is both the National Olympic Committee and the Commonwealth Games Association in New Zealand responsible for selecting athletes to represent New Zealand in the Summer and Winter Olympic Games and the Commonwealth Games.

The Commonwealth Games is a quadrennial international multi-sport event among athletes from the Commonwealth of Nations, which consists mostly, but not exclusively, of territories of the former British Empire. The event was first held in 1930 as the British Empire Games and, with the exception of 1942 and 1946, has successively run every four years since. The event was called the British Empire Games from 1930 to 1950, the British Empire and Commonwealth Games from 1954 to 1966, and British Commonwealth Games from 1970 to 1974. The event removed the word British from its title for the 1978 Games and has maintained its current name ever since.