The 1936 Summer Olympics (German: Olympische Sommerspiele 1936), officially known as the Games of the XI Olympiad (German: Spiele der XI. Olympiade) and commonly known as Berlin 1936 or the Nazi Olympics, were an international multi-sport event held from 1 to 16 August 1936 in Berlin, Germany. Berlin won the bid to host the Games over Barcelona at the 29th IOC Session on 26 April 1931. The 1936 Games marked the second and most recent time the International Olympic Committee gathered to vote in a city that was bidding to host those Games. Later rule modifications forbade cities hosting the bid vote from being awarded the games.

To outdo the 1932 Los Angeles Games, Reich Fuhrer Adolf Hitler had a new 100,000-seat track and field stadium built, as well as six gymnasiums and other smaller arenas. The Games were the first to be televised, with radio broadcasts reaching 41 countries. Filmmaker Leni Riefenstahl was commissioned by the German Olympic Committee to film the Games for $7 million. Her film, titled Olympia, pioneered many of the techniques now common in the filming of sports.

Hitler saw the 1936 Games as an opportunity to promote his government and ideals of racial supremacy and antisemitism, and the official Nazi Party paper, the Völkischer Beobachter, wrote in the strongest terms that Jews should not be allowed to participate in the Games. German Jewish athletes were barred or prevented from taking part in the Games by a variety of methods, although some women swimmers from the Jewish sports club Hakoah Vienna did participate. Jewish athletes from other countries were said to have been side-lined to avoid offending the Nazi regime.Total ticket revenues were 7.5 million Reichsmark, generating a profit of over one million R.M. The official budget did not include outlays by the city of Berlin (which issued an itemized report detailing its costs of 16.5 million R.M.) or outlays of the German national government (which did not make its costs public, but is estimated to have spent US$30 million).Jesse Owens of the United States won four gold medals in the sprint and long jump events, and became the most successful athlete to compete in Berlin, while Germany was the most successful country overall with 89 medals total, with the United States coming in second with 56 medals. These were the final Olympic Games under the presidency of Henri de Baillet-Latour and the final Games for 12 years due to the disruption of the Second World War. The next Olympic Games were held in 1948 (the Winter Games in St. Moritz, Switzerland and then the Summer Games in London, England).