Norway competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. Since the nation's Olympic debut in 1900, Norwegian athletes have appeared in every edition of the Summer Olympic Games, except for two occasions: the 1904 Summer Olympics in St. Louis and the 1980 Summer Olympics in Moscow, due to the country's support for the United States-led boycott.
Ecuador competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. It was the nation's fourteenth appearance at the Summer Olympics since its debut in 1924.
Chile competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016.
Bermuda competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. Since the nation's official debut in 1936, Bermudian athletes have appeared in every edition of the Summer Olympic Games, but did not attend the 1980 Summer Olympics in Moscow because of the nation's partial support for the US-led boycott.
Guatemala 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 fifteenth appearance at the Summer Olympics since its debut in 1952, despite failing to register any athletes in three other editions.
Chile 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. 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.
Bermuda competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games had been postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. Since the nation's official debut in 1936, Bermudian athletes have appeared in every edition of the Summer Olympic Games, but did not attend the 1980 Summer Olympics in Moscow because of the nation's support for the US-led boycott.
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.
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.
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.
Peru competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Since the nation's official debut in 1936, Peruvian athletes have appeared in every edition of the Summer Olympic Games, except for Helsinki 1952.
Bermuda competed at the 2023 Pan American Games in Santiago, Chile from 20 October to 5 November 2023. This was Bermuda's 15th appearance at the Pan American Games, having competed at every Games since making its debut in 1967.
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.
Belgium competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Since the country's debut in 1900, Belgian athletes have appeared in every edition of the Summer Olympic Games except for the 1904 edition.
Austria competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's twenty-ninth appearance at the Summer Olympics, except for Antwerp 1920, due to the nation's role in World War I.
Hong Kong, competing as "Hong Kong, China" competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the territory's eighteenth appearance at the Summer Olympics since its debut as a British colony in 1952, and the seventh appearance at the Summer Olympics since the sovereignty of Hong Kong was returned to the People's Republic of China (PRC) in 1997.
Azerbaijan competed at the 2024 Summer Olympics in France, scheduled to take place from 26 July to 11 August 2024. It will be the nation's eighth consecutive appearance at the Summer Olympics in the post-Soviet era.
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.
Uruguay competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Since the nation's official debut in 1920, Uruguayan athletes have appeared in every edition of the Summer Olympic Games, except for Moscow 1980 as part of the United States-led boycott.
Togo competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Since the nation made its debut in 1972, Togolese athletes participated in every edition of the Summer Olympic Games, except for two occasions, the 1976 Summer Olympics in Montreal, and the 1980 Summer Olympics in Moscow because of the African and the US-led boycotts, respectively.
