The 1972 Summer Olympics (German: Olympische Sommerspiele 1972), officially known as the Games of the XX Olympiad (German: Spiele der XX. Olympiade) and commonly known as Munich 1972 (German: Mnchen 1972), was an international multi-sport event held in Munich, West Germany, from 26 August to 11 September 1972.

The event was overshadowed by the Munich massacre in the second week, in which eleven Israeli athletes and coaches and a West German police officer at Olympic village were killed by Palestinian Black September members. The motivation for the attack was the ongoing Palestinian-Israeli conflict.

The 1972 Summer Olympics were the second Summer Olympics to be held in Germany, after the 1936 Games in Berlin, which had taken place under the Nazi regime, and the most recent Olympics to be held in the country. The West German Government had been eager to have the Munich Olympics present a democratic and optimistic Germany to the world, as shown by the Games' official motto, "Die Heiteren Spiele", or "the cheerful Games". The logo of the Games was a blue solar logo (the "Bright Sun") by Otl Aicher, the designer and director of the visual conception commission. The hostesses wore sky-blue dirndls as a promotion of Bavarian cultural heritage. The Olympic mascot, the dachshund "Waldi", was the first officially named Olympic mascot. The Olympic Fanfare was composed by Herbert Rehbein. The Soviet Union won the most gold and overall medals.

The Olympic Park (Olympiapark) is based on Frei Otto's plans and after the Games became a Munich landmark. The competition sites, designed by architect Gnther Behnisch, included the Olympic swimming hall, the Olympics Hall (Olympiahalle, a multipurpose facility) and the Olympic Stadium (Olympiastadion), and an Olympic village very close to the park. The design of the stadium was considered revolutionary, with sweeping canopies of acrylic glass stabilized by metal ropes, used on such a large scale for the first time.

The Munich massacre was an attack during the 1972 Summer Olympics in Munich, West Germany, by eight members of the Palestinian terrorist group Black September, who took nine members of the Israeli Olympic team hostage, after killing two more. Black September called the operation "Iqrit and Biram", after two Palestinian Christian villages whose inhabitants were expelled by the Israel Defense Forces (IDF) during the 1948 Arab-Israeli War. The Black September commander was Luttif Afif, who was also the negotiator. West German neo-Nazis gave the group logistical assistance.Shortly after the hostages were taken, Afif demanded the release of 234 Palestinian prisoners in Israeli jails and the West German–held founders of the Red Army Faction, Andreas Baader and Ulrike Meinhof. Five of the eight Black September members were killed during a failed attempt to rescue the hostages, all of whom were killed. A West German policeman was also killed in the crossfire. The West German government was criticized for poor execution of its rescue attempt and overall handling of the incident. The three surviving perpetrators were Adnan Al-Gashey, Jamal Al-Gashey, and Mohammed Safady, who were arrested. The next month, however, following the hijacking of Lufthansa Flight 615, the West German government released them in a hostage exchange. The Israeli government launched Operation Wrath of God, which authorised Mossad to track down and kill those involved in the Munich massacre.Two days prior to the start of the 2016 Summer Olympics, in a ceremony led by Brazilian and Israeli officials, the International Olympic Committee honored the eleven Israelis and one German who were killed at Munich. In the 2020 Summer Olympics, a moment of silence was observed in the opening ceremony.