Saint Lucia competed at the 2000 Summer Olympics which were held in Sydney, Australia from 13 September to 1 October. Saint Lucia sent five athletes to the 2000 Summer Olympics, Ron Promesse, Dominic Johnson, Vernetta Lesforis, Jamie Peterkin, and Sherri Henry. While none of the athletes form Saint Lucia won an Olympic medal at the 2000 Summer Olympics, Jamie Promesse placed first in his heat for the men's 50-metre freestyle.
Djibouti has participated in nine Summer Olympic Games as of the completion of the 2020 Summer Olympics in Tokyo. They have never competed in the Winter Olympic Games. Djibouti debuted at the 1984 Summer Olympics in Los Angeles, United States of America with three athletes, but did not take home a medal. The highest number of Djiboutian athletes participating in a summer Games is eight in the 1992 games in Barcelona, Spain. Only one Djiboutian athlete has ever won a medal at the Olympics, marathon runner Hussein Ahmed Salah, who won a bronze medal in the 1988 marathon.
Indonesia competed in the 2008 Summer Olympics, held in Beijing, People's Republic of China from August 8 to August 24, 2008. At the games, twenty-two Indonesians had qualified to compete, while the other three had been granted a wildcard entry.
Guatemala competed in the 2008 Summer Olympics, held in Beijing, People's Republic of China from August 8 to August 24, 2008. In what was the country's fourteenth Summer Olympics since its debut at the 1952 Summer Olympics in Helsinki, Finland. A total of twelve athletes competed in nine sports and twelve distinct events. It was the lowest number of participants for Guatemala since the 1980 Games in Moscow, USSR. Three of the twelve athletes were taking part in their second Olympics, and one of them, race walker Luis García, participated in his fourth. In any event that involved a progression through rounds, the Guatemalan athletes did not advance past the first round; as of the Beijing Olympics, there had yet to be a Guatemalan medalist. At the opening ceremony, badminton player Kevin Cordón bore Guatemala's flag.
Sudan sent a delegation to compete at the 2008 Summer Olympics in Beijing, China. Nine competitors, all from the Darfur region and northern Sudan, represented Sudan at the Beijing games.
Jamaica sent a delegation to compete at the 2008 Summer Olympics, held in Beijing, China from August 8 to August 24, 2008. This was, by far, Jamaica's best showing at the Summer Olympics; it was the nation's largest delegation yet, and its athletes nearly doubled its total gold medal count in addition to breaking the nation's record for number of medals earned in a single games. Jamaica's appearance at Beijing was its fifteenth consecutive appearance and appearance as an independent nation, although it had previously participated in four other games as a British colony and as part of the West Indies Federation. In the 29 events that included Jamaican athletes, there were 26 cases in which a Jamaican athlete or relay progressed to a final round. Usain Bolt won three of Jamaica's six gold medals at Beijing, breaking an Olympic and world record in all three of the events in which he participated. Shelly-Ann Fraser led an unprecedented Jamaican sweep of the medals in the Women's 100 m. Female sprinter Veronica Campbell-Brown carried Jamaica's flag at the ceremonies.
Burundi participated in the 2008 Summer Olympics, held in Beijing, China from 8 to 24 August 2008. It was Burundi's fourth appearance in the summer Olympics since its debut in 1996. The Burundi team included three athletes: runners Joachim Nshimirimana and Francine Niyonizigiye, as well as swimmer Elsie Uwamahoro. Niyonizigiye, a marathon runner, was flag bearer for the opening ceremony. None of the Burundi athletes progressed further than the qualifying round.
Bolivia sent a delegation to compete at the 2008 Summer Olympics, held in Beijing, China. The South American country's delegation was the fifteenth Summer Olympic team and seventeenth overall Olympic team overall sent by the country. Bolivia's National Olympic Committee sent seven athletes–three women and four men–across five sports and seven distinct events. A substantial number of the athletes originated in southern Bolivian cities, most notably Santa Cruz de la Sierra. All athletes except for cyclist Horacio Gallardo finished their events, although no medals were won by the country at these Games. Trap shooter César Menacho was the Bolivian flag bearer at the ceremonies.
The African island nation of São Tomé and Príncipe competed at the 2012 Summer Olympics in London, held from 27 July to 12 August 2012. This was the nation's fifth appearance at the Olympics since its debut in 1996. Two track and field athletes, Christopher Lima da Costa and Lecabela Quaresma were selected to the team by wildcard places, without having qualified at any sporting event. Quaresma was selected as flag bearer for the opening and closing ceremonies. Neither of the two athletes progressed beyond the first round of their respective events.
Yana Valeryevna Martynova is a Russian swimmer who competes in the Women's 400m individual medley. At the 2004 Summer Olympics she competed in the women's 400 m individual medley, finishing in 21st place. At the 2008 Olympics, she competed in the 400 m individual medley and the 200 m butterfly. She reached the final of the 400 m individual medley. At the 2012 Summer Olympics she finished 24th overall in the heats in the Women's 400 metre individual medley and failed to reach the final.
Yayoi Matsumoto is a Japanese swimmer. At the 2012 Summer Olympics, she competed for the national team in the Women's 4 × 100 metre freestyle relay, finishing in 7th place in the final. She also competed in the women's 50m freestyle, finishing with a time of 25.73 seconds in 35th place in the heats, and the 4 x 200 m freestyle relay. At the 2016 Summer Olympics, she competed in the 50 m freestyle, finishing in 43rd, and was part of the Japanese women's 4 x 100 m freestyle team.
Bobana Veličković was a Serbian sport shooter. At the 2012 Summer Olympics, she competed in the Women's 10 metre air pistol. At the 2016 Summer Olympics, she competed in the Women's 10 metre air pistol and the Women's 25 metre pistol, finishing in 7th place in 10m.
Alicja Tchórz is a Polish swimmer. She competed at the 2012 Summer Olympics in the Women's 100 metre backstroke, finishing in 25th place in the heats, failing to qualify for the semifinals. She competed at the 2016 Summer Olympics in the Women's 100 metre backstroke.
Mylene Ong Chui Bin is a Singaporean swimmer. At the 2012 Summer Olympics, she competed in the Women's 100-metre freestyle, finishing in 29th place overall in the heats, failing to qualify for the semifinals.
Tjaša Oder is a Slovenian swimmer. At the 2012 Summer Olympics, she competed in the Women's 800 metre freestyle, finishing in 25th place overall in the heats, failing to qualify for the final.
Sarah Steyaert is a French sports sailor. The 2008 world champion in the Laser Radial, she finished in 5th place at the 2008 Summer Olympics. At the 2012 Summer Olympics, she competed in the Women's Laser Radial class, finishing in 16th place.
Josefin Anna Louise Olsson is a Swedish sports sailor.
Sara Winther is a New Zealand sports sailor.
Manami Doi is a Japanese sports sailor.
Ai Kondo Yoshida is a Japanese sports sailor.
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