Mexico competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's twentieth appearance at the Olympics, since its debut in 1900. Comité Olímpico Mexicano sent the nation's largest delegation to the Games since 1992. A total of 109 athletes, 59 men and 50 women, competed in 20 sports. Football was the only team-based sport in which Mexico had its representation in these Olympic Games. There was only a single competitor in fencing, shooting, and weightlifting.
Belarus competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's fifth appearance at the Summer Olympics in the post-Soviet era. The Belarus Olympic Committee sent a total of 151 athletes to the Games, 82 men and 69 women, to compete in 22 sports.
Jamaica competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's fourteenth appearance at the Summer Olympics as an independent nation, although it had previously appeared in the first four editions as a British colony, and as part of the West Indies Federation. The Jamaica Olympic Association sent a total of 47 athletes to the Games, 22 men and 25 women, to compete only in track and field, badminton, shooting, and swimming. For the second consecutive time in Olympic history, Jamaica was represented again by more female than male athletes.
Peru competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's fifteenth appearance at the Olympics, except the 1952 Summer Olympics in Helsinki.
Colombia competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's sixteenth appearance at the Olympics, except the 1952 Summer Olympics in Helsinki.
Trinidad and Tobago competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's sixteenth appearance at the Summer Olympics as an independent nation, although it had previously appeared in four editions as part of the British colony and the West Indies Federation. Trinidad and Tobago Olympic Committee sent a total of nineteen athletes to the Games, ten men and nine women, to compete only in track and field, shooting, swimming, and taekwondo, which made its Olympic debut; the nation's team size was relatively similar to the record in Sydney four years earlier.
The United States Virgin Islands competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004.
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.
Cuba competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's nineteenth appearance in the Olympics. With baseball's removal from the Olympic program and the absence of the nation's volleyball team for the first time, the Cuban Olympic Committee sent the nation's smallest delegation to the Games since 1964. A total of 111 athletes, 66 men and 45 women, competed in 13 sports. There was only a single competitor in archery and table tennis.
Ecuador competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's twelfth consecutive appearance at the Olympics. It had first competed at the 1924 Summer Olympics in Paris.
The United States Virgin Islands competed at the 2012 Summer Olympics in London, from July 27 to August 12, 2012. This was the nation's eleventh appearance at the Olympics, except the 1980 Summer Olympics in Moscow, because of the United States boycott.
Barbados competed at the 2015 Pan American Games in Toronto, Ontario, Canada from July 10 to 26, 2015.
Bolivia competed at the 2015 Pan American Games in Toronto, Canada from July 10 to 26, 2015.
The British Virgin Islands competed at the 2015 Pan American Games in Toronto, Ontario, Canada from July 10 to 26, 2015. The Chef de mission of the team was Xavier Dag Samuels.
El Salvador competed in the 2015 Pan American Games in Toronto, Ontario, Canada from July 10 to 26, 2015.
The Virgin Islands competed at the 2015 Pan American Games held in Toronto, Canada from July 10 to 26, 2015.
Virgin Islands, also known as the United States Virgin Islands and officially as the Virgin Islands of the United States, competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the territory's twelfth appearance at the Summer Olympics.
Dominican Republic competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's fourteenth consecutive appearance at the Summer Olympics.
The Virgin Islands competed at the 2019 Pan American Games in Lima, Peru from July 26 to August 11, 2019.
The British Virgin Islands competed at 2019 Pan American Games in Lima, Peru from 26 July to 11 August 2019.
