The 2016 Summer Olympics was a multi-game event.
The 2016 Summer Olympics ( Jogos Olímpicos de Verão de 2016 ) , officially known as the Games of the XXXI Olympiad and commonly known as Rio 2016 , was a major international multi-sport event held in Rio de Janeiro , Brazil , from 5 August to 21 August 2016 . A multi-sport event is an organized sports event , often held over multiple days , featuring competition in many different sports between organized teams of athletes from ( mostly ) nation states . Games are held over the course of several days in and around a `` host city '' , which changes for each competition .