American Samoa sent a team to the 2008 Summer Olympics in Beijing, China. The U.S. territory selected four athletes to compete in three sports: swimming, athletics and judo. The dependency's participation in Beijing marked its seventh participation in any Olympic game since its debut at the 1988 Summer Olympics in Seoul, and its sixth participation at any Summer Olympic games. Of the four American Samoan athletes who participated in Beijing, all four were first-time Olympians and born outside American Samoa and none of the four advanced past the qualification or preliminary rounds of their events. More women participated in the 2008 American Samoan Olympic delegation than in any one delegation in its Olympic history. Judoka Silulu A'etonu was the territory's flagbearer at the ceremonies.
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.
Comoros took part in the 2008 Summer Olympics, held in Beijing, China from 8 to 24 August 2008. It was Comoros's fourth appearance in the summer Olympics since its debut in 1996. The Comoros team included three athletes: runners Mhadjou Youssouf and Feta Ahamada, and swimmer Mohamed Attoumane. Ahamada, a 100 metres sprinter, was the flag bearer for the opening ceremony, the first woman to be given the honour. None of the Comoros athletes progressed further than the qualifying heats.
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.
During the 2012 Summer Olympics in London, United Kingdom, Saint Vincent and the Grenadines appeared in their seventh consecutive Summer Olympics. The country sent three competitors to their team with wild card entries. Athlete Kineke Alexander reprised her role as the nation's flag bearer for the second time at the opening ceremony. As Alexander entered her second Olympics, athlete Courtney Carl Williams and swimmer Tolga Akcayli debuted at the 2012 Olympics. For Saint Vincent and the Grenadines, none of the country's competitors advanced past their individual heats. In overall standings, Akcayli had the highest 2012 Olympic finish for Saint Vincent and the Grenadines when he placed 45th in the men's 50 metre freestyle.
Laos competed at the 2012 Summer Olympics in London when the event took place from 27 July to 12 August 2012. It was the nation's eighth overall appearance following their Olympic debut in 1980. Laos had previously competed in seven consecutive Olympics prior to London apart from the 1984 Summer Olympics boycott. Two athletes and one swimmer were selected to the Laotian Olympic team after the country did not qualify any competitors.
Adzo Rebecca Kpossi is a Togolese swimmer who specialises in butterfly and freestyle. Kpossi competed in both the 2012 and 2016 Summer Olympics. At both of her Olympics, she competed in the 50 metre freestyle. She has also competed in two World Championships, a World Short Course Championship and an African Games.
Malta sent a delegation to compete at the 2012 Summer Paralympics in London, United Kingdom, from 29 August to 9 September 2012. This was the country's eighth appearance in a Summer Paralympic Games. The Maltese delegation consisted of a single short-distance swimmer: Matthew Sultana. In his three events, the men's 50 metres freestyle S10, the men's 100 metre butterfly S10 and the men's 100 metre breaststroke SB9, he failed to qualify beyond the first round.
North Korea made its Paralympic Games début at the 2012 Summer Paralympics in London, sending a single wildcard representative to compete in swimming.
Deborah Font Jiménez is a swimmer from Spain.
Emma Jennifer McKeon, is an Australian competitive swimmer. She is a seven-time world record holder, three current and four former, in relays. Her total career haul of 11 Olympic medals following the 2020 Olympic Games made her Australia's most decorated Olympian and included one gold medal from the 2016 Summer Olympics in Rio de Janeiro and four gold medals from the 2020 Summer Olympics in Tokyo. With four gold and three bronze medals she was the most decorated athlete across all sports at the 2020 Summer Olympics, and tied for the most medals won by a woman in a single Olympic Games. She has also won 20 medals, including five gold medals, at the World Aquatics Championships; and a record 20 medals, including 14 gold, at the Commonwealth Games.
Paraguay competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. Since the nation's official debut in 1968, Paraguayan athletes had 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.
Kyle Chalmers, is an Australian competitive swimmer. He is a world record holder in the short course 100 metre freestyle, 4×100 metre medley relay, and long course 4×100 metre mixed freestyle relay. He is the Oceanian and Australian record holder in the short course 50 metre butterfly and 50 metre freestyle.
The Refugee Olympic Team competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016, as independent Olympic participants.
Mozambique sent a delegation to compete at the 2016 Summer Paralympics in Rio de Janeiro, Brazil, from 7 to 18 September 2016. This was the country's second time competing at a Summer Paralympic Games after making its debut at the 2012 Summer Paralympics. Mozambique was represented by one athlete, Edmilisa Governo, a short-distance sprinter. She competed in two events, the women's 100 metres T12 competition and the women's 400 metres T12. Governo reached the semi-finals of the women's 100 metres T12 and took Mozambique's first Paralympic Games medal in the women's 400 metres T12 by placing third in the final of the competition.
Nicaragua sent a delegation to compete at the 2016 Summer Paralympics in Rio de Janeiro, Brazil, from 7–18 September 2016. This was the Central American country's third appearance at the Summer Paralympic Games, having made its debut twelve years earlier at the 2004 Summer Paralympics. They were represented by three athletes, sprinter Jennifer Osejo, middle-distance runner and sprinter Gabriel Cuadra Holmann and powerlifter Fernando Acevedo, who all qualified for the games by achieving the minimum qualifying standard in international competition. Neither Holmann or Osejo claimed a medal in their respective events and Acevado finished fifth in the men's −72kg powerlifting class.
Honduras sent a delegation to compete at the 2016 Summer Paralympics in Rio de Janeiro, Brazil, from 7–18 September 2016. This was the nation's sixth appearance at a Summer Paralympiad after it debuted at the 1996 Summer Paralympics. The Honduran delegation to Rio de Janeiro consisted of two athletes: powerlifter Gabriel Zelaya Díaz and short-distance swimmer Emmanuel Díaz. Both competitors were not ranked in their respective competitions after Gabriel Zelaya Díaz was unable to lift any weights in his three tries and Emmanuel Díaz was two minutes late arriving to his event.
Guatemala sent a delegation to compete at the 2016 Summer Paralympics in Rio de Janeiro, Brazil, from 7–18 September 2016. This was the nation's seventh time competing in the Summer Paralympic Games since it made its debut forty years prior in Toronto, Canada. Middle-distance runner Óscar Raxón Siquiej was the only athlete that Guatemala sent to Rio de Janeiro after he was awarded a wild card spot by the International Paralympic Committee. He was third and last in his heat in the men's 1500 metres T11 and failed to advance to the final since only the top six were allowed in that stage of the competition.
Macau sent a delegation to compete at the 2016 Summer Paralympics in Rio de Janeiro, Brazil, from 7–18 September 2016. This was the territory's eighth time competing at a Summer Paralympic Games since it debuted at the 1988 Summer Paralympics. The Macanese delegation to Rio consisted of one athlete, 18-year old swimmer Chen Yu Chia, who qualified for the Games by being granted a wild card place from the International Paralympic Committee in August 2016. His best finish was 17th in the men's 200 metre freestyle S14 tournament, and his other result was 19th in the men's 200 metre individual medley SM14.
Aline dos Santos Rocha is a Brazilian wheelchair racer and skier, who came third at the 2021 Berlin Marathon, and won multiple medals at the 2023 World Para Nordic Skiing Championships. She competed at the 2016 Summer Paralympics and the 2018 and 2022 Winter Paralympics.
