Antigua and Barbuda competed at the 2004 Summer Olympics in Athens, Greece from 13 to 29 August 2004.
Antigua and Barbuda competed at the 2008 Summer Olympics in Beijing, China, submitting a delegation that included athletes Daniel Bailey, Brendan Christian, James Grayman, and Sonia Williams in track and field events, and Kareem Valentine in swimming. Antigua and Barbuda's appearance in Beijing marked its eighth appearance at the Summer Olympics since the nation's debut at the 1976 Summer Olympics in Montréal, Canada. There were no medalists from Antigua and Barbuda in 2008, although Bailey reached the quarterfinals and Christian the semifinals of their respective events.
Chile competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This nation has competed at every Olympic Games, except the 1932 Summer Olympics in Los Angeles, and the 1980 Summer Olympics in Moscow because of the United States boycott.
Antigua and Barbuda competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012. This was the nation's ninth appearance at the Summer Olympics.
Antigua and Barbuda competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's tenth appearance at the Summer Olympics.
Antigua and Barbuda 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 eleventh appearance at the Summer Olympics.
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.
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.
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.
Mexico competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's twenty-fifth appearance at the Summer Olympics.
Antigua and Barbuda is scheduled to compete at the 2023 Pan American Games in Santiago, Chile from October 20 to November 5, 2023. This will be Antigua and Barbuda's 12th appearance at the Pan American Games, having competed at every edition of the Games since 1979.
Guatemala competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. The nation made its official debut in Helsinki 1952, and Guatemalan athletes have appeared in every edition of the Summer Olympics from 1968 onwards.
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.
Saint Lucia 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.
Cayman Islands competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's twelfth appearance at the Summer Olympics, since the official debut at the 1976, except for 1980 Summer Olympics in Moscow, as well as the nation joined the US led boycott.
The British Virgin Islands competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's eleventh consecutive appearance at the Summer Olympics.
Cyprus competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's twelfth consecutive appearance at the Summer Olympics.
Kuwait competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's fourteenth appearance at the Summer Olympics, although it competed under the Independent Olympic Athletes at the previous Games in 2016, resulting from the country's suspension by the International Olympic Committee for government interference.
Bermuda competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. 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.
