The 2016 Summer Olympics (Portuguese: Jogos Ol�mpicos de Ver�o de 2016[1]), officially known as the Games of the XXXI Olympiad, are the thirty-first Summer Olympic Games, the world's largest international multi-sport event that is held every four years. The 2016 Summer Olympics are commonly known as Rio 2016, as this competition will be held in Rio de Janeiro, Brazil.

The host city of Rio de Janeiro was announced at the 121st IOC Session held in Copenhagen, Denmark, on October 2, 2009. The other finalists were Madrid, Spain; Chicago, United States; and Tokyo, Japan. Rio will become the first South American city to ever host the Summer Olympics, and the third city in the southern hemisphere to hold the games, after the 1956 and 2000 Olympics, both held in Australia.

A few months before the games, the Olympic Flame Relay will start in Olympia, Greece, where the inspiration for todays' Olympic games originated.