The 2000 Summer Olympics (officially the Games of the XXVII Olympiad and also known as Sydney 2000, the Millennium Olympic Games or the Games of the New Millennium) were an international multi-sport event held from 15 September to 1 October 2000 in Sydney, New South Wales, Australia. 

It marked the second time the Summer Olympics were held in Australia, and in the Southern Hemisphere, the first being in Melbourne, Victoria, in 1956.

Taekwondo made it's official debut as an Olympic Sport at this Games.