Matthew Nicholas Biondi is an American former competitive swimmer and water polo player. As a swimmer, he is an eleven-time Olympic medalist, and former world record-holder in five events. Biondi competed in the Summer Olympic Games in 1984, 1988 and 1992, winning a total of eleven medals. During his career, he set three individual world records in the 50-meter freestyle and four in the 100-meter freestyle.
Lisbeth Constance Trickett, is a retired Australian swimmer. She was a gold medallist at the 2004 Summer Olympics, the 2008 Summer Olympics, and the 2012 Summer Olympics. She was the world record holder in the short-course (25m) 100-metre freestyle.
Dana Whitney Vollmer is a former American competition swimmer, five-time Olympic gold medalist, and former world record-holder. At the 2004 Summer Olympics, she won a gold medal as a member of the winning United States team in the 4×200-meter freestyle relay that set the world record in the event. Eight years later at the 2012 Summer Olympics, Vollmer set the world record on her way to the gold medal in the 100-meter butterfly, and also won golds in the 4×100-meter medley relay and 4×200-meter freestyle relay. She won three medals including a gold at the 2016 Summer Olympics in Rio de Janeiro.
Romania competed at the 1988 Summer Olympics in Seoul, South Korea. 68 competitors, 32 men and 36 women, took part in 59 events in 10 sports.
Mireia Belmonte García is a Spanish Olympic, world, and European champion swimmer. She is the world record holder in the short course 200 metre butterfly and 400 metre individual medley. Formerly, she held the world record in the short course 400 metre freestyle, 800 metre freestyle, and 1500 metre freestyle. She was the first Spanish woman to win a gold medal in swimming at an Olympic Games and is widely considered to be the greatest Spanish swimmer of all time.
Sarah Fredrika Sjöström is a Swedish competitive swimmer specialising in the sprint freestyle and butterfly events. She is the current world record holder in the 50 metre freestyle, the 100 metre freestyle, the 50 metre butterfly and the 100 metre butterfly. She is a former world record holder in the 50 metre freestyle, 100 metre freestyle, 100 metre butterfly, 200 metre freestyle, and the 4×50 metre medley relay. She is the first Swedish woman to win an Olympic gold medal in swimming. She won the Overall Swimming World Cup in 2017 and 2018. In 2022, she became the first swimmer representing a country in Europe to win 10 individual World Championships gold medals. She currently represents Energy Standard in the International Swimming League.
Thomas Stachewicz is a former freestyle and backstroke swimmer, who represented Australia at three Summer Olympics.
Rūta Meilutytė is a Lithuanian swimmer. An Olympic gold medalist, she is a world record holder in the short course 50 metre breaststroke and 100 metre breaststroke. She is a former world record holder in the long course 50 metre breaststroke and 100 metre breaststroke.
The Asian island nation of the Maldives competed at the 2012 Summer Olympics in London from 27 July to 12 August 2012. This was the nation's seventh consecutive appearance at the Olympics, the delegation consisted of two athletes each in track and field and swimming. For the first time since their debut at the Summer Olympics, the Maldives entered one badminton player into the Olympics. Mohamed Ajfan Rasheed, the inaugural Maldivian badminton player to compete at the Olympics, was the nation's flag bearer at the opening ceremony with Azneem Ahmed carrying the Maldivian flag in the closing ceremony. All the athletes qualified for the games through wild cards from International Association of Athletic Federations FINA and Badminton World Federation. The Maldives however, has yet to win its first ever Olympic medal.
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 17 medals, including four gold medals, at the World Aquatics Championships; and a record 20 medals, including 14 gold, at the Commonwealth Games.
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.
Naomi Ruele is a Botswana swimmer. She competed in the women's 50 metre freestyle event at the 2016 Summer Olympics where she ranked at #47 with a time of 26.23 seconds. She also swims for Florida International University, and has been named the Conference USA swimmer of the year with wins in the 50 free in a time of 22.11, 100 free in a time of 48.45 and 100 back in a time of 52.42.
Erin Gallagher is a South African swimmer. She competed in the women's 100 metre freestyle event at the 2017 World Aquatics Championships. In 2019, she represented South Africa at the 2019 African Games held in Rabat, Morocco.
Emma Chelius is a South African swimmer.
Alessandro Miressi is an Italian swimmer. He is a world record holder in the short course 4×100 metre freestyle relay and an Italian record holder in the long course and short course 100 metre freestyle. In the long course 100 metre freestyle, he was 2018 European champion, 2020 European Championships silver medalist, and 2022 European Championships bronze medalist. In the short course 100 metre freestyle, he was 2021 World champion, 2019 and 2021 European Championships silver medalist, and 2022 World Championships bronze medalist.
Rebecca Meder is a South African swimmer. She is the African record holder in the 100 metre individual medley and the South African record holder in the long course and short course 200 metre individual medley. At the 2022 World Short Course Championships, she placed sixth in the final of the 100 metre individual medley. In the 200 metre individual medley at the 2022 Commonwealth Games, she placed fourth in the final. At the 2021 African Championships, she won 11 gold medals, six in individual events and five in relay events, swimming on the finals relay for each of the five relay events.
Jillian Janis Geohagan Crooks is a Caymanian competitive swimmer. She is the Cayman Islands record holder in the 50 metre butterfly and 100 metre freestyle. She competed in the 100 metre freestyle at the 2020 Summer Olympics, placing 41st in the prelims heats.
Roos Vanotterdijk is a Belgian competitive swimmer. She is the Belgian record holder in the long course 50 metre freestyle, 100 metre freestyle, 50 metre backstroke, 100 metre backstroke, and 100 metre butterfly, as well as the short course 50 metre backstroke and 100 metre individual medley. She is a six-time medalist in individual events at the European Junior Swimming Championships and medalist at the European Youth Olympic Festival.
Jana Pavalić is a Croatian competitive swimmer. She is the Croatian record holder in the long course 50-metre freestyle, 100-metre freestyle, and 50-metre butterfly, as well as the short course 50-metre butterfly. At the 2022 World Junior Championships, she won the gold medal in the 50-metre butterfly with a Croatian record time of 26.38 seconds at 15 years of age. As a 14-year-old, she placed 24th in the 50-metre butterfly, 28th in the 50-metre freestyle, and 37th in the 100-metre freestyle at the 2021 World Short Course Championships.
Sara Curtis is an Italian competitive swimmer specializing in sprint freestyle and backstroke events. At the 2022 World Junior Championships, she won silver medals in the 50-metre freestyle, 4×100-metre medley relay, and 4×100-metre mixed medley relay, a bronze medal in the 50-metre backstroke, and placed fourth in the 100-metre backstroke. At the 2022 European Junior Championships, she won a gold medal in the 4×100-metre freestyle relay and bronze medals in the 50-metre freestyle and the 4×100-metre medley relay.
Romania 
