1984 Summer Olympics

The 1984 Summer Olympics (officially the Games of the XXIII Olympiad and commonly known as Los Angeles 1984) were an international multi-sport event held from July 28 to August 12, 1984, in Los Angeles, California, United States. It was the second time that Los Angeles had hosted the Games, with the first in 1932. California was the home state of the incumbent U.S. presidentRonald Reagan, who officially opened the Games. These were the first Summer Olympic Games under the IOC presidency of Juan Antonio Samaranch.

The 1984 Games were boycotted by 14 Eastern Bloc countries, including the Soviet Union and East Germany, in response to the American-led boycott of the 1980 Summer Olympics in Moscow in protest at the Soviet invasion of Afghanistan; Romania was the only Soviet-aligned state that opted to attend the Games. Albania, Iran, Libya and Upper Volta also chose to boycott the Games, but for unrelated reasons.

Despite the field being depleted in certain sports due to the boycott, 140 National Olympic Committees took part in the 1984 Games, a record number at the time. The United States won the most gold and overall medals, followed by Romania and West Germany.

The 1984 Summer Olympics are widely considered to be the most financially successful modern Olympics, serving as a model on how to run an Olympic Games. As a result of low construction costs, due to the use of existing sport infrastructure, coupled with a reliance on private corporate funding, the 1984 Games generated a profit of US $232.5 million (equivalent to US $592.25 million in 2024).

Los Angeles will host the Summer Olympics for the third time in 2028, becoming the third city in the world—following London and Paris—to do so.