Ellie Victoria Cole, is an Australian retired Paralympic swimmer and wheelchair basketball player. After having her leg amputated due to cancer, she trained in swimming as part of her rehabilitation program and progressed more rapidly than instructors had predicted. She began competitive swimming in 2003 and first competed internationally at the 2006 IPC Swimming World Championships, where she won a silver medal. Since then, she has won medals in the Pan Pacific Swimming Championships, the Commonwealth Games, the Paralympic Games, the IPC Swimming World Championships, and various national championships.
Joseph Isaac Schooling is a Singaporean former professional swimmer who specialised in butterfly, freestyle, and medley events. He was the gold medalist in the 100m butterfly at the 2016 Olympics, achieving Singapore's first ever Olympic gold medal. His winning time of 50.39s broke multiple records at the National, Southeast Asian, Asian, and Olympic levels.
Kathleen Genevieve Ledecky is an American competitive swimmer. She has won nine Olympic gold medals and 21 world championship gold medals, the most in history for a female swimmer. With 14 medals and 9 gold medals, she is also the most decorated American woman, most decorated female swimmer, the woman with the most gold medals and fifth-most decorated athlete in Olympic history. She has won a record 16 individual gold medals at the World Aquatics Championships. Ledecky's 10 individual medals at the Olympics and 26 overall medals at the World Aquatics Championships are records in women's swimming. Ledecky is the world record holder in the women's 800- and 1500-meter freestyle, as well as the former world record holder in the women's 400-meter freestyle. She also holds the fastest-ever times in the women's 500-, 1000-, and 1650-yard freestyle events. She is widely regarded as the greatest female swimmer of all time and one of the greatest Olympians of all time.
Daniel William Henry "Danny" Wong Bego, OLY is a Malaysian swimmer, who specialises in freestyle and butterfly events. He emerged as one of Malaysia's most promising and outstanding swimmers, winning a total of fifteen medals at the Southeast Asian Games, and breaking six national records. He was the first Malaysian swimmer to compete in three different events at a single Olympic Games.
Richard Sam Bera is a former Indonesian swimmer, who specialized in sprint and middle-distance freestyle events. He is a three-time Olympian, a bronze medalist at the Asian Games (1990), and a twenty-three times SEA Games gold-medalist since his debut in 1987. He is regarded as Indonesia's most successful swimmer in the sporting history. Up until 2015, Bera held several Indonesian and Southeast Asian Games records in sprint freestyle events from the Southeast Asian Games.
Rowan Crothers is an Australian freestyle swimmer. He represented Australia at the 2016 Rio Paralympics, 2020 Tokyo Paralympics and 2024 Paris Paralympics. He won two gold and one silver medals at the Tokyo Paralympics and two silver and one bronze medals at Paris Paralympics.
Benjamin Proud is an English competitive swimmer, representing Great Britain at the Olympic Games, the FINA World Aquatics Championships and LEN European Aquatics Championships, and England at the Commonwealth Games. Proud specialises in sprint freestyle and butterfly races, specifically the 50-metre distance in both. He is the 2022 World Champion in the 50 metre freestyle, his second long course world title. He is the 2017 world champion in the 50-metre butterfly. He is only the third male swimmer to be simultaneously short-course and long-course World Champion at 50 metre freestyle, after César Cielo and Florent Manaudou. in 2024, at his third attempt he won his first Olympic medal, a silver, in the 50 metre freestyle at the 2024 Summer Olympics in Paris.
Mackenzie James Horton is an Australian retired freestyle swimmer. He is an Olympic gold medallist, World Championships gold medallist, and 4-time Commonwealth Games gold medallist. At the 2016 Olympic Games in Rio de Janeiro, Brazil, he took the gold in the 400m freestyle, and became the first male swimmer from the state of Victoria to win an Olympic swimming gold in the Games' history.
James George Guy is an English competitive swimmer who specialises in freestyle and butterfly. Guy has won multiple gold medals at each of the major international meets available to him, including for Great Britain at the Olympic Games (3), the World (5) and European Championships (7), and for England in the Commonwealth Games (2). In addition to further medals in those events, he has also reached the podium at both the World and European short-course championships. With 46 major medals at international championship meets, 20 at global level, he is one of the most decorated swimmers in British history.
Luke Greenbank is an English professional swimmer who specialises in backstroke. A medalist in the 200 metre backstroke at the Olympic Games and the World and European championships, he also swam the first leg in the 2019 World and 2020 European Championship gold medal-winning Great Britain medley relay teams. He won a silver medal as lead-off for Great Britain in the 4 x 100 metre medley relay for men at the 2020 Summer Olympics. He won a gold medal as lead-off for England in the heats of the 4 x 100 metre medley relay for men at the 2022 Commonwealth Games.
Duncan William MacNaughton Scott is a Scottish swimmer representing Great Britain at the FINA World Aquatics Championships, LEN European Aquatics Championships, European Games and the Olympic Games, and Scotland at the Commonwealth Games. Scott made history after winning four medals - more than any other British athlete at a single Olympic Games - in Tokyo 2020, simultaneously becoming Great Britain's most decorated swimmer in Olympic history. With an additional gold and silver medal in Paris 2024 bringing his total to eight, Scott became Scotland's most-decorated Olympian, and is currently tied with Bradley Wiggins as the second most-decorated Olympian in British history. Scott is the only athlete in the top three to still be actively competing, and the only member of the top four who is not a track cyclist.
Welson Sim Wee Sheng is a Malaysian professional swimmer. He was the first Malaysian male swimmer to qualify for the men's 400 metre freestyle event at the 2016 Summer Olympics.
Ernie Agat Gawilan is a Filipino swimmer who competed at the 2016 and 2020 Summer Paralympics and was the first gold medalist for the Philippines in the Asian Para Games.
Thomas William Darnton Dean is a British competitive freestyle swimmer. He is a triple Olympic gold medallist, winning gold individually in 200 metre freestyle at the 2020 Summer Olympics and as part of a team in 4 × 200 m freestyle relay at the 2020 Summer Olympics and the 2024 Summer Olympics.
Toh Wei Soong is a Singaporean freestyle and butterfly swimmer. He was a bronze medallist in the S7 50 metre Freestyle at the 2018 Commonwealth Games and a two-time gold medallist at the 2018 Asian Para Games for the S7 50 metre Freestyle and the S7 100 metre Freestyle events.
Katherine Cadwallader Douglass is an American competitive swimmer. A versatile swimmer who competes in many events, Douglass won her first major international medal at the 2020 Olympic Games and won three medals at the 2022 World Championships. Douglass then won six medals, including two golds, at the 2023 World Championships. At the 2024 World Championships, she won five medals, including two golds. Douglass won four medals, including two golds, at the 2024 Olympic Games; she became the Olympic champion in the 200 m breaststroke.
Summer Ann McIntosh is a Canadian competitive swimmer. She is a three-time Olympic champion, four-time World Aquatics champion, and two-time Commonwealth Games gold medallist. Noted for her strength in medley and butterfly events, she is the world record holder in the 400 metre individual medley, and also holds the Olympic and textile records in the 200 metre butterfly event, and the Olympic record in the 200 metre individual medley.
Léon Marchand is a French swimmer. He is the world record holder in the long course 400 metres individual medley and short course 200 metres individual medley; the Olympic record holder in the 200 metres butterfly, the 200 metres breaststroke, the 200 metres individual medley and the 400 metres individual medley; and the French record holder in the long course 200 metre individual medley, 200 metre butterfly and 200 metre breaststroke. At the 2024 Summer Olympics, he won gold medals in the 200 m medley, 200 metre breaststroke, 200 metre butterfly, and 400 metre medley. He became the fourth swimmer and third male swimmer in Olympic history to win four individual gold medals at a single Games.
The swimming competitions at the 2021 SEA Games took place at Mỹ Đình Aquatics Center in Hanoi, Vietnam from 14 to 19 May 2022. It is one of four aquatic sports at the Games, along with diving, finswimming and canoeing.
Malaysia 
