Sarah Fredrika Sjöström is a Swedish competitive swimmer specialising in the sprint freestyle and butterfly events.
Thomas Allen Shields is an American competitive swimmer. He is a two-time Olympian and the current American record-holder in the short course 50-meter butterfly and 200-meter butterfly. At the 2016 Summer Olympics, he won a gold medal in the 4×100-meter medley relay, swimming the butterfly leg of the relay in the prelims. Later the same year, he became the first American to swim faster than 44 seconds in the 100-yard butterfly, setting a new American record of 43.84 seconds.
Vladimir Viktorovich Morozov is a retired Russian competitive swimmer and Olympic medalist. He is the former world record holder in the short course 100-metre individual medley, the current, World Cup record and Russian national record holder in the 100-metre individual medley and 100-metre freestyle, and Russian record holder in the 50-metre freestyle. He also holds the European record for the 100-metre individual medley. Formerly he held the Russian national record in the 50-metre backstroke and the 50-metre butterfly, and held the European and Russian records in the 50-metre breaststroke.
Florent Manaudou is a French competitive swimmer, an Olympic champion of the 50-meter freestyle at the 2012 London Olympics, and the younger brother of Laure Manaudou, a 2004 Olympic gold medalist in swimming. He competes for the Energy Standard Swim Club in the International Swimming League.
Emma Jennifer McKeon, is a retired Australian competitive swimmer. She is an eight-time world record holder, three current and five former, in relays. Her total career haul of 14 Olympic medals following the 2024 Olympic Games made her the most decorated Australian, the third-most decorated swimmer, and the seventh-most decorated athlete in Olympic history and included one gold medal from the 2016 Summer Olympics in Rio de Janeiro, four gold medals from the 2020 Summer Olympics in Tokyo and one gold medal from the 2024 Summer Olympics in Paris. 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 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.
Caeleb Remel Dressel is an American competitive swimmer who specializes in freestyle, butterfly, and individual medley events. He swims representing the Cali Condors as part of the International Swimming League. He won a record seven gold medals at the 2017 World Aquatics Championships in Budapest, nine medals, six of which were gold, at the 2018 World Swimming Championships in Hangzhou, and eight medals, including six gold, at the 2019 World Aquatics Championships in Gwangju. Dressel is a nine-time Olympic gold medalist and holds world records in the 100 meter butterfly, 50 meter freestyle, and 100 meter individual medley.
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.
Michael Charles Andrew is an American competitive swimmer and an Olympic gold medalist. He was the 2016 world champion in the 100 meter individual medley. At his first Olympic Games, the 2020 Summer Olympics, he won a gold medal and set a world record as part of the 4x100 meter medley relay, placed fourth in the 100 meter breaststroke, fourth in the 50 meter freestyle, and fifth in the 200 meter individual medley. Andrew's swims in 2021 at the 2020 Olympics made him the first swimmer to represent the United States at an Olympic Games in an individual breaststroke event as well as another individual event other than an individual medley in the then-125-year-history of swimming at the Summer Olympics. He has won 78 medals at Swimming World Cup circuits.
Ryan Held is an American freestyle swimmer who specializes in the sprint events, and is currently sponsored by Arena. He holds the U.S. Open record in the long course 100 meter freestyle and three world records in short course relay events. At the 2016 Summer Olympics he won a gold medal in the 4×100 meter freestyle relay, swimming in both the prelims and the final of the event. In 2021, he won silver medals in the 50 meter freestyle and the 100 meter freestyle at the 2021 World Short Course Championships. At his first FINA World Aquatics Championships, the 2022 World Aquatics Championships, he won a gold medal in the 4×100 meter freestyle relay.
Blake John Pieroni is a three-time Olympic gold medalist in swimming. He is a two time Olympian and gold medalist in the 4×100-meter freestyle relay at both the 2016 Summer Olympics and the 2020 Summer Olympics. On the relay in 2016, he swam in the prelims of the race, on the 2020 Olympics 4×100-meter freestyle relay he swam in both the prelims and the final. He also won a gold medal in the 4x100-meter medley relay at the 2020 Olympic Games, swimming the freestyle leg of the relay in the prelims.
Tomer Frankel is an Israeli Olympic swimmer. He is the former European junior champion in the 100m freestyle and the 4 × 200m freestyle, and competed at the 2020 Tokyo Olympics. Frankel represented Israel at the 2024 Paris Olympics in the 100 metre freestyle, 100 metre butterfly, 4 × 100 metre freestyle relay, and 4 × 200 metre freestyle relay.
Anastasia "Nastiya" Gorbenko is an Israeli competitive swimmer. She competes in the backstroke, breaststroke, freestyle, and medley. She has won 8 World and European championships gold medals, competed at 2 Olympic finals, broken most of the Israeli national records for women and mixed relays, and is considered to be Israel's greatest swimmer of all time. In February 2024, Gorbenko won a silver medal at the Doha World Championships in the women's 400 meters individual medley. Gorbenko represented Israel at the 2024 Summer Olympics in swimming in the 100m backstroke, 200m backstroke, 100m breaststroke, 200m individual medley, 400m individual medley, 4x200m freestyle relay, and mixed 4x100m medley relay.
Andrey Dmitriyevich Minakov is a Russian swimmer and Olympian. He is the Russian record holder in the long course 100 metre butterfly. He is a former world junior record holder in the long course and short course 50 metre butterfly and long course 100 metre freestyle. At the 2019 World Aquatics Championships, he won silver medals in the 100 metre butterfly and 4×100 metre freestyle relay, and a bronze medal in the 4×100 metre medley relay. In 2021, at the 2020 Summer Olympics, he placed fourth in the 100 metre butterfly, fourth in the 4×100 metre medley relay, seventh in the 4×100 metre freestyle relay, and tenth in the 100 metre freestyle. He also won two gold medals, one silver medal, and three bronze medals at the 2021 World Short Course Championships. In 2022, he won the NCAA title in the 100 yard butterfly.
Claire Curzan is an American competitive swimmer and Olympian. Specialising in multiple events, she earned an Olympic silver medal in the 4×100 meter medley relay in the 2020 Summer Olympics by swimming the preliminary butterfly leg. She holds junior world records in the long course 50 meter freestyle and 100 meter butterfly and the short course 50 meter butterfly and 100 meter butterfly. She also holds American records in the short course 50 meter backstroke and 50 meter butterfly, and formerly held the American record in the 100 yard butterfly. She currently swims for the Virginia Cavaliers.
Victoria "Torri" Huske is an American competitive swimmer and the reigning Olympic champion in the 100-meter butterfly. She holds world records in two relays: the 4x100-meter medley and 4x100-meter mixed medley. She is the former American record holder in the 50- and 100-meter butterfly.
Joseph Hunter Armstrong is an American competitive swimmer. He is the world record holder in the long course 50 meter backstroke. At the 2022 World Aquatics Championships, he won a silver medal in the 50 meter backstroke, a bronze medal in the 100 meter backstroke, gold medals in the 4×100 meter freestyle relay and 4×100 meter mixed medley relay, and a silver medal in the 4×100 meter medley relay. At the 2020 Summer Olympics, he won a gold medal in the 4×100 meter medley relay, swimming backstroke in the preliminaries, and placed ninth in the 100 meter backstroke.
Natalie Anisha Hinds is an American professional swimmer specializing in freestyle and butterfly events. She made her international championships debut at 27 years of age, winning a bronze medal in the 4×100 meter freestyle relay at the 2020 Summer Olympics, swimming in both the prelims and the final. In her first final at a World Championships in an individual event, she placed eighth in the 100 meter freestyle at the 2022 World Short Course Championships when she was 29 years old. At the 2022 US National Championships, she won the national title in the 100 meter freestyle. Between the 2022 World Aquatics Championships and the 2022 World Short Course Championships, she won a total of five medals in relay events as a prelims-only relay swimmer.
Shaine Casas is an American professional swimmer. He is an Americas record holder in the short course 4×50 meter medley relay, swimming the butterfly leg of the relay. At the 2021 World Short Course Championships, he won the gold medal in the 100-meter backstroke, a silver medal in the 200-meter backstroke, and placed seventh in the 50-meter backstroke. In 2022, at the year's World Aquatics Championships, he won the bronze medal in the 200-metre backstroke. Later in the year, at the 2022 World Short Course Championships, he won the silver medal in the 200-metre backstroke and placed fourth in the finals of the 100-meter individual medley and 200-meter individual medley.
Coleman Stewart is a retired American swimmer. He is the current world record holder in the short course 100 meter backstroke. At the 2019 World University Games, he won a gold medal as part of the 4×100 metre medley relay, swimming backstroke in the prelims heats, and a bronze medal in the 100 meter butterfly. He competed in the International Swimming League as part of the Cali Condors.
Gretchen Walsh is an American competitive swimmer and the world record holder in the 100 meter butterfly, 4×100 medley relay, and mixed gender 4×100 medley relay. She won the silver medal in the 100 meter butterfly at the 2024 Summer Olympics in Paris, where she also set the Olympic record in the 100 meter butterfly in the semifinals with a time of 55.38. She additionally holds one world junior record in the mixed gender 4×100 medley relay event, as well as American records in the 50 meter butterfly, 4×100 meter freestyle relay, 4×100 meter medley relay, 50 yard freestyle, 100 yard freestyle, 100 yard butterfly, 100 yard backstroke, 4×50 yard freestyle relay, 4×50 yard medley relay, 4×100 yard freestyle relay, and 4×100 yard medley relay.
Nigeria 
