Federica Pellegrini is an Italian retired swimmer. A native of Mirano, in the province of Venice, she 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. She also held the women's 200 meters freestyle world record.
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.
Shirley Frances Babashoff is an American former competition swimmer, Olympic champion, and former world record-holder in multiple events. Babashoff set six world records and earned a total of nine Olympic medals in her career. She won a gold medal in the 400-meter freestyle relay in both the 1972 and 1976 Olympics, and she won the 1975 world championship in both the 200-meter and 400-meter freestyle. During her career, she set 37 national records and for some time held all national freestyle records from the 100-meter to 800-meter event.
Manon van Rooijen is a freestyle swimmer from the Netherlands, who was a member of the Dutch Women's 4 × 100 m freestyle relay Team that won the silver medal at the 2000 Summer Olympics in Sydney, Australia. She did so alongside Inge de Bruijn, Wilma van Hofwegen and Thamar Henneken.
Sebastiaan Verschuren is a Dutch former competitive swimmer who specialized in short- and middle-distance freestyle events. At the 2016 European Aquatics Championships he won the gold medal in the 200 meter freestyle. He participated in the 2012 and 2016 Olympics, finishing 5th in the 100 meter freestyle in 2012.
Ranomi Kromowidjojo is a retired Dutch swimmer of mixed Dutch-Javanese Surinamese origin who mainly specialises in sprint freestyle events. She is a triple Olympic champion, winning the gold medal in the 4 × 100 m freestyle relay at the 2008 Olympics, and in the 50 m freestyle and 100 m freestyle at the 2012 Olympics. Kromowidjojo holds the world record in the 50 meter freestyle short course, and as part of the Dutch team she holds the world record in the 4×50 m freestyle relay. She formerly held world records in the 4 × 100 m and 4 × 200 m freestyle relays. She has won a total of 39 medals in FINA World Championship events.
Frederike Johanna Maria "Femke" Heemskerk is a former Dutch competitive swimmer who mainly specializes in freestyle, but also has a strong backstroke and medley.
Allison Rodgers Schmitt is an American competition swimmer who specializes in freestyle events. She is a four-time Olympian and a ten-time Olympic medalist.
Melissa Franklin Johnson is an American former competitive swimmer and five-time Olympic medalist. She held the world record in the 200-meter backstroke. As a member of the U.S. national swim team, she also held the world records in the 4×100-meter medley relay.
Sharon van Rouwendaal is a Dutch swimmer and the Olympic gold medalist in the 10 km open water marathon at the 2016 Olympics in Rio de Janeiro.
Kathleen Genevieve Ledecky is an American competitive swimmer. She has won seven Olympic gold medals and 21 world championship gold medals, the most in history for a female swimmer. She has won a world record 16 individual gold medals at the World Aquatics Championships. Ledecky's six individual gold 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.
Shannon Vreeland is an American former competition swimmer specializing in freestyle and Olympic gold medallist. She was a member of the 2012 United States Olympic team, and won a gold medal in the 4×200-meter freestyle relay at the 2012 London Summer Olympics. Vreeland had won a total of nineteen medals in major international competitions, including thirteen gold medals, three silver, and three bronze, spanning the Olympics, World Championships, Pan Pacific Championships, and Summer Universiade. Vreeland retired after the 2016 Olympic Trials and began attending law school at Vanderbilt University in the fall of 2016.
Clemens Andreas Rapp is a German swimmer. He competed at the 2012 Summer Olympics in the 200 m freestyle, finishing in 24th place in the heats, failing to qualify for the semifinals. His team was placed fourth in the 4 × 200 m freestyle relay.
Dion Dreesens is a Dutch swimmer.
Simone Ashley Manuel is an American professional swimmer specializing in freestyle events. At the 2016 Rio Olympics, she won two gold and two silver medals: gold in the 100-meter freestyle and the 4×100-meter medley, and silver in the 50-meter freestyle and the 4×100-meter freestyle relay. In winning the 100-meter freestyle, a tie with Penny Oleksiak of Canada, Manuel became the first Black American woman to win an individual Olympic gold in swimming and set an Olympic record and an American record. At the 2020 Tokyo Olympics, she won a bronze medal as the anchor of the American 4×100-meter freestyle relay team.
Marrit Steenbergen is a Dutch competitive swimmer. She won gold medals in the 100 m and 200 m freestyle events at the 2022 European Championships held in Rome, Italy.
Esmee Vermeulen is a Dutch swimmer.
Andrea "Andi" Murez, is an Israeli-American Olympic swimmer. She swam for Israel at the 2016 Summer Olympics. She will represent Israel at the 2020 Summer Olympics.
Robin Neumann is a Dutch competitive swimmer who specializes in freestyle.
Kyle Stolk is a Dutch competitive swimmer who specializes in freestyle events. He won a silver medal in the boys' 200 m freestyle at the 2014 Summer Youth Olympics in Nanjing, and finished seventh as a member of the Dutch swimming squad in the 4×200 m freestyle relay at the 2016 Summer Olympics in Rio de Janeiro. Stolk currently trains for the swimming league at PSV Eindhoven, under the tutelage of his coach and three-time Olympian Marcel Wouda.
Netherlands 
