Kieren John Perkins, OAM is a former Australian freestyle swimmer. He specialised in the 1500-metre freestyle and won successive Olympic gold medals in this event in the 1990s. He won his first at the 1992 Olympics which he won in world record time and then at the 1996 Olympics when he defended his title. In total he won four Olympic medals.
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.
Federica Pellegrini is an Italian retired swimmer. A native of Mirano, in the province of Venice, she holds the women's 200 meters freestyle world record, and won a gold medal at the 2008 Beijing Olympics. At the 2009 World Championships in Rome, Pellegrini became the first woman ever to break the 4-minute barrier in the 400 m freestyle with a time of 3:59.15.
Roland Mark Schoeman OIS is a South African American swimmer and was a member of the South African swimming team at the 2000, 2004, 2008 and 2012 Olympic Games. In May 2022, he officially became United States citizen.
Ambrose "Rowdy" Gaines IV is an American former competitive swimmer, U.S. Olympic Hall of Fame member, three-time Olympic gold medalist, and member of the International Swimming Hall of Fame. He is a swimming analyst for television network NBC. He has covered swimming at the Olympic Games since 1992 in Barcelona.
Grant George Hackett OAM is an Australian swimmer, most famous for winning the men's 1500 metres freestyle race at both the 2000 Summer Olympics in Sydney and the 2004 Summer Olympics in Athens. This achievement has led him to be regarded as one of the greatest distance swimmers in history. He also collected a gold medal in Sydney for swimming in the heats of the 4 × 200 m freestyle relay. He was well regarded for his versatility, and has held the long course world records in the 200 m, 800 m, and 1500 m freestyle events. He dominated the 1500 m event for a decade, being undefeated in the event in finals from 1996 until the 2007 World Aquatics Championships. In total, he has won 10 long-course world championship gold medals.
Novella Calligaris is a retired Italian swimmer, and the first Italian to win an Olympic medal in swimming. Her elder brother Mauro Calligaris was also an Olympic swimmer.
Filippo Magnini is an Italian retired competitive swimmer who was twice 100 metres freestyle World champion and three times European champion at that distance.
Anders Holmertz is a Swedish retired swimmer who was a leader in freestyle races in the 1980s and at the beginning of the 1990s, though often missing personal success. He also settled a record in the 400 m freestyle. He is the brother of another Swedish swimmer, Mikael Holmertz.
Yevgeny Viktorovich Sadovyi is a retired Russian freestyle swimmer who won three gold medals at the 1992 Summer Olympics at Barcelona and was subsequently chosen by Swimming World magazine as the Male World Swimmer of the Year.
Lorraine Joyce Thurlow,, née Crapp, is a former Olympic swimming champion representing Australia. In world swimming history, Crapp earned a place as the first woman to break the five-minute barrier in the 400 m freestyle.
Michael Lee Bruner is an American former competition swimmer, two-time Olympic champion, and former world record-holder in two events. At the 1976 Olympics he won gold medals in the 4×200-meter freestyle relay and in the 200-meter butterfly, setting a world record. Two years later he won the 1978 World Championships in the 200 m butterfly. During his career Bruner set two world records: in the 200-meter butterfly (1:59.23) and in relay.
Timothy Andrew Shaw is an American former Olympic medal-winning swimmer and water polo player. He swam at the 1976 Summer Olympics and played on the American team at the 1984 Summer Olympics. He is one of a handful of athletes to win Olympic medals in two different sports. Between 1974 and 1984, Shaw won two Olympic silver medals; three world championships; seven U.S. Amateur Athletic Union national titles; and three U.S. National Collegiate Athletic Association championships.
Cynthia Lee Woodhead, commonly known by her family nickname "Sippy", is an American former competition swimmer, world champion, Olympic medalist, and former world record-holder. She won three gold medals at the 1978 World Championships, when she was only 14 years old, and set seven world records during her career.
Kimberly Ann Linehan is an American former competition swimmer, world champion, and former world record-holder.
Kristóf Milák is a Hungarian swimmer. He is the current holder of the world record in the long course 200 metre butterfly and the European record in the long course 100 metre butterfly. He also currently holds the Hungarian record in the short course 50 metre backstroke. At his first Olympic Games, the 2020 Summer Olympics, he won a gold medal in the 200 metre butterfly and a silver medal in the 100 metre butterfly. He has also won three gold medals and one silver at the World Aquatic Championships, as well as three gold medals at the European Aquatics Championships. He was the gold medalist in the 400 metre freestyle, 200 metre freestyle, and 200 metre butterfly events at the 2018 Summer Youth Olympics.
Thomas Ceccon is an Italian swimmer. He is a world record holder in the long course 100 metre backstroke and the short course 4×100 metre freestyle relay. He is also the Italian record holder in the long course 50 metre backstroke and 50 metre butterfly. He is the 2022 World champion in the 100 metre backstroke and 2022 European champion in the 100 metre backstroke and 50 metre butterfly. In the 100 metre individual medley, he won the gold medal at the 2022 World Short Course Championships and the bronze medal at the 2021 World Short Course Championships. At the 2020 Summer Olympics, he won a silver medal in 4×100 metre freestyle relay, a bronze medal in the 4×100 metre medley relay, placed fourth in the 100 metre bacsktroke, and placed twelfth in the 100 metre freestyle.
Michele Lamberti is a competitive Italian swimmer. He is a former world record holder in the short course 4×50-metre medley relay. He currently holds the Italian record in the short course 50-metre backstroke. At the 2021 European Short Course Championships he won a gold medal and set a world record in the 4×50-metre medley relay, won three silver medals, one in the 50-metre backstroke, one in the 100-metre butterfly, and one in the 4×50-metre mixed medley relay, and won a bronze medal in the 200-metre backstroke. At the 2021 World Short Course Championships he won two bronze medals in relay events, swimming in the preliminaries for each relay.
Lorenzo Mora is a competitive Italian swimmer. He is a world record holder in the short course 4×50 metre medley relay. He is the Italian record holder in the short course 100 metre backstroke and 200 metre backstroke. In the 50 metre backstroke, he won the silver medal at the 2021 World Short Course Championships and the bronze medal at the 2022 Mediterranean Games. In the 100 metre backstroke, he won the silver medal at each the 2022 World Short Course Championships and the 2022 Mediterranean Games. In the 200 metre backstroke, he won the bronze medal at the 2022 World Short Course Championships, the silver medal at the 2021 European Short Course Championships, and the gold medal at the 2022 Mediterranean Games.
Matteo Lamberti is an Italian competitive swimmer. He competed at the 2019 World University Games, placing fourth in the 800 metre freestyle and fifth in the 1500 metre freestyle. At the 2021 World Short Course Championships he placed fourth in the 4×200 metre freestyle relay, swimming the anchor leg of the relay in the prelims heats.
Italy 
