Inge de Bruijn is a Dutch former competitive swimmer. She is a four-time Olympic champion and a former world record-holder.
Pieter Cornelis Martijn van den Hoogenband is a Dutch retired swimmer. He is a triple Olympic champion and former world record holder.
Michael George Klim, OAM is an 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.
Marcel Reinier Wouda is a Dutch former swimmer, who became the first Dutch world champion in men's swimming when he won the world title in the 200 m individual medley at the 1998 World Aquatics Championships in Perth, Australia. He was the coach of Olympic champions Maarten van der Weijden and Hinkelien Schreuder at the Nationaal Zweminstituut Eindhoven.
Magdalena Johanna Maria "Marleen" Veldhuis is a retired swimmer from the Netherlands. She was world record holder in four events. Veldhuis won eight world championships gold medals and 20 European championships gold medals. In the Olympics, she won a bronze medal in London 2012 in the 50 m freestyle, as well as three relay medals: bronze in Athens 2004, gold in Beijing 2008, and silver in London 2012.
Stephen Roy Holland, OAM is an Australian former freestyle swimmer of the 1970s who won a bronze medal in the 1500 m freestyle at the 1976 Summer Olympics in Montreal. In a brief and spectacular career, he broke 12 world records and was known as the Super Fish after his coach Laurie Lawrence likened his two-beat kick to the tail of a fish. He was educated at the Anglican Church Grammar School.
Mark Hermanus Maria Veens is a freestyle swimmer from the Netherlands, who competed for his native country at three consequentive Summer Olympics, starting in 1996 in Atlanta, Georgia as a member of the 4×100 m freestyle.
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.
Stefan Remco Aartsen is a former butterfly swimmer from the Netherlands, who twice competed for his native country at the Summer Olympics: in 1996 and 2000.
Willemijntje den Ouden was a competitive swimmer from the Netherlands, who held the 100-meter freestyle world record for nearly 23 years, from 1933 to 1956.
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.
Robert Lijesen is a Dutch Swimmer, who is specialized in the 50 and 100 m freestyle. He is currently trained by former world champion Marcel Wouda at the same club as multiple olympic champion Pieter van den Hoogenband. He holds the European record in the 4 × 100 m freestyle Short Course together with Bas van Velthoven, Mitja Zastrow and Robin van Aggele in 3:09.18 swum during the World SC Championships 2008 in Manchester they finished second in this event behind the United States who swam a world record in the same race.
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.
Pieter Timmers is a Belgian retired competitive swimmer who specialized in sprint freestyle events. He won the silver medal in the 100 meter freestyle at the 2016 Olympics. Timmers currently holds nine Belgian records, and seven national titles in long and short course freestyle. Timmers is a resident athlete for Brabo Antwerp, and trains under his personal coach Ronald Gaastra. He stands 2.00 m, and weighs 89 kg (196 lb). He ended his career in Budapest in the second season of the International Swimming League in 2020.
Yoris Grandjean is a Belgian swimmer, who specialized in sprint freestyle events. He won two gold medals at the 2006 FINA Youth World Swimming Championships, and later represented Belgium at the 2008 Summer Olympics. Since 2009, he still currently holds a Belgian record (22.13) in the 50 m freestyle from the national championships in Antwerp. Grandjean also trains for Liège Swimming Club under his head coach Andre Henvaux.
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.
Renzo Jair Tjon-A-Joe is a Surinamese-Dutch swimmer who mainly swims in 50 m and 100 m freestyle events. He competed at the 2016 and 2020 Summer Olympics for Suriname and at the 2024 Summer Olympics for the Netherlands after transferring allegiance in April 2024. Renzo is the fastest swimmer in Surinamese history in the 50 m and 100 m freestyle category.
Ben Schwietert is a Dutch competitive swimmer who specializes in freestyle.
Netherlands 
