Michael George Klim, OAM is a Polish-born Australian swimmer, Olympic gold medallist, world champion, and former world record-holder of the 1990s and 2000s. He is known as the creator of straight arm freestyle.
Matthew Grevers is an former American competition swimmer who competes in the backstroke and freestyle events, and is a six-time Olympic medalist. He has won a total of thirty-three medals in major international competition, fourteen gold, twelve silver, and seven bronze spanning the Olympics, World Championships, and the Universiade. At the 2008 Summer Olympics, Grevers won gold medals as a member of the U.S. teams in the 4×100-meter freestyle and 4×100-meter medley relays, and a silver medal in the 100-meter backstroke. Four years later, at the 2012 Summer Olympics, he won gold medals in the 100-meter backstroke and the 4×100-meter medley relay, and a silver medal in the 4×100-meter freestyle relay.
Belinda Hocking is a retired Australian backstroke swimmer. She is an Australian Institute of Sport scholarship holder.
Katerine Savard is a Canadian competitive swimmer who specializes in women's butterfly events and freestyle relay. She holds several Canadian national records in the butterfly over the 50-, 100-, and 200-metre distances in both the short and long courses. Savard also holds the Canadian junior butterfly record in the 200-metre event. She won the gold medal at the 100-metre butterfly event at the 2013 Summer Universiade, held in Kazan. Savard also won gold at the 2014 Commonwealth Games in the 100-metre butterfly in Glasgow, where she set the Commonwealth record in the process. At the same games, she won a bronze medal as a member of the women's 4×100-metre medley relay team.
Riley Janes is a Canadian former competition swimmer who specialized in freestyle and backstroke events. He is a single-time Olympian (2004), and is part of the bronze-medal Canadian medley relay team at the 2002 Commonwealth Games in Manchester, England.
Pavel Sidorov is a Kazakh former swimmer, who specialized in sprint freestyle and backstroke events. Sidorov competed for Kazakhstan in two swimming events at the 2000 Summer Olympics in Sydney. He eclipsed a FINA B-cut of 58.69 from the Kazakhstan Open Championships in Almaty. On the first day of the Games, Sidorov placed twenty-first for the Kazakhstan team in the 4×100 m freestyle relay. Teaming with Sergey Borisenko, Andrey Kvassov, and Igor Sitnikov in heat three, Sidorov swam a third leg and recorded a split of 52.14, but the Kazakhs settled only for last place in a final time of 3:28.90. The following day, in the 100 m backstroke, Sidorov placed fifty-second on the morning prelims. Swimming in heat one, he edged out Bolivia's Mauricio Prudencio on the final length to grab a fourth seed by 0.13 seconds in a time of 1:01.02.
Michelle Lischinsky is a Canadian former swimmer who specialized in backstroke events.
Nadiya Beshevli is a Ukrainian former swimmer, who specialized in freestyle and backstroke events. She represented Ukraine, as an 18-year-old, at the 2000 Summer Olympics, and held numerous Ukrainian titles and meet records in the freestyle relays and backstroke double.
Mark Stevens is an English former competitive swimmer, who specialized in sprint and middle-distance freestyle events.
Melanie Dodd is an Australian former swimmer who specialized in sprint freestyle events. She represented the host nation Australia, as a 27-year-old, at the 2000 Summer Olympics, and also trained for the Australian Institute of Sport, under Russian-based swim coach Gennadi Touretski. She won two medals, a silver and bronze, in the 4×100-metre freestyle relay at the 1995 FINA Short Course World Championships in Rio de Janeiro, and 1999 FINA Short Course World Championships in Hong Kong.
Katie Brambley is a Canadian former swimmer who specialized in middle-distance freestyle events. She captured two bronze medals from the 1995 Pan American Games, and later represented Canada at the 2000 Summer Olympics. During her sporting career, Brambley also trained for the Pacific Dolphins Swim Club, under head coach Tom Johnson, while taking up a bachelor's degree in political science at the University of British Columbia.
Emma Jennifer McKeon, is an Australian competitive swimmer. She is an eight-time world record holder, three current and five 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.
Taylor Madison Ruck is a Canadian competitive swimmer. She won two Olympic bronze medals as part of Canada's women's 4×100 metre and 4×200 metre freestyle relay teams at the 2016 Summer Olympics in Rio de Janeiro. Ruck won eight medals at the 2018 Commonwealth Games in Gold Coast, Australia. Her eight medal performance of one gold, five silver, and two bronze tied her with three other athletes for the most all-time at a single Commonwealth Games, as well as making her the most decorated Canadian female athlete ever at a single Commonwealth Games. Ruck is the all-time leading medallist at the FINA World Junior Swimming Championships having won nine gold, two silver, and two bronze over the course of the 2015 and 2017 editions.
Javier Carlos Acevedo is a Canadian competitive swimmer. He competes primarily in the backstroke events. Acevedo won two bronze medals at the 2017 World Aquatics Championships as part of both the mixed 4×100 m freestyle relay and the 4×100 m mixed medley relay. He has also won a gold medal at the 2015 FINA World Junior Swimming Championships in the 4×100 m mixed freestyle relay and a silver in the 50 m backstroke. Acevado was a former Junior world record holder in the 100 m backstroke event.
Markus Thormeyer is a Canadian competitive swimmer who specializes in freestyle and backstroke. Originally from Delta, Thormeyer moved in 2015 to Vancouver, British Columbia after graduating high school to train with the High Performance Centre-Vancouver. While he swims he is also pursuing an undergraduate degree in environmental science at the University of British Columbia.
Corey Charles Garth Main is a New Zealand swimmer who qualified to compete at the 2016 Summer Olympics to be held in Rio de Janeiro, Brazil, in the men's 100 metre backstroke.
Mary-Sophie Harvey is a Canadian swimmer who competed as part of Team Canada at the 2020 Summer Olympics in Tokyo.
Kaylee Rochelle McKeown is an Australian swimmer and triple Olympic gold medalist. She is the world record holder in the long course 50 metre backstroke, 100 metre backstroke and both the long course and short course 200 metre backstroke. She won gold in both the 100 metre and 200 metre backstroke, as well as the 4×100 metre medley relay at the 2020 Summer Olympics staged in Tokyo in 2021. In 2023, she was named as the "Best Female Swimmer of the Year" by World Aquatics, after sweeping gold in all three events of backstroke at all three World Cup legs, held in Berlin, Athens and Budapest in October, 2023.
Hannah Margaret McNair "Maggie" Mac Neil is a Canadian competitive swimmer. A 100 metre butterfly event specialist, she is the 2020 Olympic champion, 2019 World (LC) champion, two-time World (SC) champion, 2022 Commonwealth champion, and 2023 Pan American champion. She holds the current Americas record (55.59s), the short course world record, the Commonwealth record, and Pan American record in the event.
Summer McIntosh is a Canadian competitive swimmer. A four-time World Aquatics champion and two-time Commonwealth Games gold medalist, she is the current world record holder in the women's 400 metre individual medley.
Canada 
