Estonia competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. It was the nation's twelfth appearance at the Games and seventh consecutive in the post-Soviet era.
Estonia competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's eighth consecutive appearance at the Games since 1992 and thirteenth overall in Summer Olympic history.
Vietnam competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's eleventh appearance at the Olympics as a reunified republic, although the Vietnamese athletes previously attended six other editions under the banner of the State of Vietnam or South Vietnam, except on two occasions: in 1976, as the result of an impact areas in the nation's warzones during the Vietnam War, and in 1984 due to the nation's support for the Soviet-led boycott. It was the second consecutive time Vietnam had failed to win any medals since the 2016 Summer Olympics. Like in 2020, Vietnam finished the Summer Olympics without a single medal earned.
Poland competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024, celebrating the centenary of the team's debut in the same venue. Polish athletes have appeared in every edition of the Summer Olympic Games from 1924 onwards, except for the 1984 Summer Olympics because of the Soviet boycott.
Greece competed at the 2024 Summer Olympics in Paris, from 26 July to 11 August 2024, with a team of 101 athletes in 17 sports. Greek athletes have appeared in every Summer Olympic Games of the modern era, alongside Australia, France, Great Britain, and Switzerland. As the progenitor nation of the Olympic Games and in keeping with the tradition, Greece entered first at Place du Trocadéro during the parade of nations segment of the opening ceremony.
Denmark competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Danish athletes have appeared in every edition of the Summer Olympic Games except for the sparsely attended St. Louis 1904. Before the start of the games, DIF sat an official medal goal of 9–11 medals for the 2024 Paris games.
Venezuela competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's twentieth consecutive appearance at the Summer Olympics. Venezuela failed to win a single Olympic medal for the first time since the 2000 Summer Olympics. Raiber Rodríguez fell short of his bronze medal match in the Wrestling at the 2024 Summer Olympics – Men's Greco-Roman 60 kg, losing out to Ri Se-ung of North Korea.
Chile competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Since the nation's debut in 1896, Chilean athletes have appeared in all but five editions of the Summer Olympics of the modern era. Chile did not attend the 1932 Summer Olympics in Los Angeles at the period of the worldwide Great Depression and was also part of the US-led boycott, when Moscow hosted the 1980 Summer Olympics.
Cuba competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's twenty-second appearance at the Summer Olympics. The 2024 Cuban delegation was smaller than their 2020 delegation, which was previously their smallest delegation since 1964. It was also the second time since 1964 that the Cuban delegation had fewer than one hundred athletes.
The Czech Republic, officially named Czechia by the IOC, competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Czech athletes have appeared in every edition of the Summer Olympic Games, except for three occasions: Athens 1896, St. Louis 1904 and Los Angeles 1984 as part of the Soviet boycott. It is the nation's eighth consecutive appearance at the Summer Olympics after splitting from the former Czechoslovakia.
Switzerland competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Swiss athletes have appeared in every Summer Olympic Games edition of the modern era, except for a partial boycott of Melbourne 1956 in protest of the Soviet invasion of Hungary.
Norway competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Norwegian athletes have appeared in every edition of the Summer Olympic Games, except for the 1980 Summer Olympics in Moscow because of the country's support for the United States-led boycott.
Bulgaria competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Bulgarian athletes have appeared in every edition of the Summer Olympics from 1924 onwards, except for three occasions: the 1948 Summer Olympics in London because of the nation's instigation in World War II, and the 1932 and 1984 Summer Olympics in Los Angeles because of the worldwide Great Depression and Soviet boycott, respectively.
Ukraine competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's eighth consecutive appearance at the Summer Olympics in the post-Soviet era and the first since the Russian invasion of Ukraine. A total of 140 athletes competed amid the Russian invasion, the lowest number in the history of Ukraine's participation in the games.
Egypt competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Since the nation's debut in 1912, Egyptian athletes have appeared in every edition of the Summer Olympic Games except for two occasions: the 1932 Summer Olympics in Los Angeles because of the worldwide Great Depression and the 1980 Summer Olympics in Moscow, as part of the United States-led boycott.
South Korea, officially the Republic of Korea, competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's nineteenth appearance at the Summer Olympics.
Kingdom of Thailand competed at the 2024 Summer Olympics in Paris. It is taking place from 26 July to 11 August 2024. It signified the nation's participation in every edition of the Summer Olympics, since the official debut at 1952, except for the 1980 Summer Olympics in Moscow, because of its support of the US-led boycott.
Morocco competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's sixteenth appearance at the Summer Olympics, except Moscow 1980, as part of the United States-led boycott.
Kazakhstan competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's eighth consecutive appearance at the Summer Olympics in the post-Soviet era.
Turkey, officially named Türkiye by the IOC, competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Since the nation's official debut in 1908, Turkish athletes have appeared in every edition of the Summer Olympic Games, except for three occasions: Antwerp 1920, because of the sanction against the Central Powers including the Ottoman Empire, Los Angeles 1932 at the period of worldwide Great Depression, and Moscow 1980, as part of the United States-led boycott. Notably, the 2024 Summer Olympics marked the first time since 1984 that Turkey did not secure at least one gold medal.
Russian Empire (1908–1912)
Soviet Union (1952–1988)
