Antigua and Barbuda competed at the 2004 Summer Olympics in Athens, Greece from 13 to 29 August 2004.
Antigua and Barbuda competed at the 2000 Summer Olympics in Sydney, Australia.
Antigua and Barbuda competed at the 1996 Summer Olympics in Atlanta, United States.
Antigua and Barbuda competed at the 1992 Summer Olympics in Barcelona, Spain. Thirteen competitors, nine men and four women, took part in fifteen events in three sports.
Antigua and Barbuda competed at the 1988 Summer Olympics in Seoul, South Korea. Fifteen competitors, twelve men and three women, took part in nineteen events in four sports.
Antigua and Barbuda competed at the 1984 Summer Olympics in Los Angeles, United States. The nation returned to the Olympic Games after participating in the American-led boycott of the 1980 Summer Olympics. Fourteen competitors, ten men and four women, took part in seventeen events in three sports.
The Associated State of Antigua competed in the Olympic Games for the first time at the 1976 Summer Olympics in Montreal, Quebec, Canada. Ten competitors, all men, took part in eleven events in two sports.
The Republic of the Congo, competing as Congo, first participated at the Olympic Games in 1964, and has sent athletes to compete in most Summer Olympic Games since then. Congo missed the 1968 Games and boycotted the 1976 Games along with most other African nations. Congo has never participated in the Winter Olympic Games.
Myanmar, then competing as Burma, first participated at the Olympic Games in 1948, and has sent athletes to compete in every Summer Olympic Games since then, except for the 1976 Games. The nation has never participated in the Winter Olympic Games. Since the 1992 Games, the nation has been designated as Myanmar in Olympic competition.
Sudan first participated at the Olympic Games in 1960, and has sent athletes to compete in most Summer Olympic Games since then. The nation did not attend the 1964 Games, boycotted the 1976 Summer Olympics along with most African nations, and participated in the American-led boycott of the 1980 Summer Olympics. The nation has never participated in the Winter Olympic Games.
Larry R. Miller is a track and field athlete who represented Antigua and Barbuda in the Olympic Games.
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.
Antigua and Barbuda has competed at every edition of the Pan American Games since the eighth edition of the multi-sport event in 1979. However, Antigua and Barbuda participated in the 1959 Pan American Games as part of the British West Indies and future Prime Minister Lester Bird won a bronze medal in the long jump. Sprinter Heather Samuel won Antigua and Barbuda's first Pan Am medal in 1995, a bronze in the women's 100 metres. Sprinter, Brendan Christian won Antigua and Barbuda's first gold medal at the 2007 Pan American Games. To date, all five of Antigua and Barbuda's medals have been won in the sport of track and field. Antigua and Barbuda did not compete at the first and only Pan American Winter Games in 1990.
Antigua and Barbuda participated in the 2010 Summer Youth Olympics in Singapore.
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 made its Paralympic Games debut at the 2012 Summer Paralympics in London, United Kingdom, from August 29 to September 9, 2012.
Antigua and Barbuda made its Paralympic Games début at the 2012 Summer Paralympics in London, sending a single representative to compete in athletics.
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 2018 Commonwealth Games in the Gold Coast, Australia from April 4 to April 15, 2018. It was Antigua and Barbua's 10th appearance at the Commonwealth Games.
Antigua and Barbuda competed at the 2019 Pan American Games in Lima, Peru from July 26 to August 11, 2019.
