Frederike Johanna Maria "Femke" Heemskerk is a former Dutch competitive swimmer who mainly specializes in freestyle, but also has a strong backstroke and medley.
Jerome Alan Heidenreich was an American competition swimmer for Southern Methodist University, a 1972 Munich Olympic champion, and a former world record-holder. He set six world records during his swimming career, all as a relay team member.
Michael Fred Phelps II is an American former competitive swimmer. He is the most successful and most decorated Olympian of all time with a total of 28 medals. Phelps also holds the all-time records for Olympic gold medals (23), Olympic gold medals in individual events (13), and Olympic medals in individual events (16). At the 2004 Summer Olympics in Athens, Phelps tied the record of eight medals of any color at a single Games, held by gymnast Alexander Dityatin, by winning six gold and two bronze medals. Four years later, when he won eight gold medals at the 2008 Beijing Games, he broke fellow American swimmer Mark Spitz's 1972 record of seven first-place finishes at any single Olympic Games. At the 2012 Summer Olympics in London, Phelps won four gold and two silver medals, and at the 2016 Summer Olympics in Rio de Janeiro, he won five gold medals and one silver. This made him the most successful athlete of the Games for the fourth Olympics in a row.
The swimming competitions at the 2012 Summer Olympics in London took place from 28 July to 4 August at the Aquatics Centre. The open-water competition took place from 9 to 10 August in Hyde Park.
David Karl Brandl is an Austrian swimmer, who specialized in freestyle events. He is a multiple-time Austrian champion, a four-time national record holder, and a current member of Perger Swimming Club in Perg. He also won a bronze medal, as a member of the Austrian swimming team, at the 2008 European Championships in Eindhoven, Netherlands.
Jördis Steinegger is an Austrian swimmer who specialized in freestyle and individual medley events. She is a two-time Olympian, a nine-time long and short course Austrian record holder, and a member of the Linz Amateur Swimming Club in Linz, under her personal coach Marco Wolf.
Raphaël Stacchiotti is a Luxembourgish swimmer, who specialized in the freestyle and individual medley events. He is a four-time Olympian, a multiple-time Luxembourgian record holder in all freestyle and medley events, and a double European junior champion. Stacchiotti also holds numerous meet records and collects a total of 49 medals from the Games of the Small States of Europe. At the 2008 Summer Olympics, Stacchiotti became the youngest athlete to be chosen by the Luxembourg squad, and was given the honor of carrying the nation's flag in the opening ceremony.
Choi Hye-Ra is a South Korean swimmer, who specialized in butterfly and individual medley events. She collected four medals in the 200 m butterfly, 200 m individual medley, and the 800 m freestyle relay at the 2006 Asian Games in Doha, Qatar, and at the 2010 Asian Games in Guangzhou, China. She also won a silver medal in the same medley distance at the 2011 Summer Universiade in Shenzhen, China, with a time of 2:14.17. She is a resident athlete of Osan Sports Club in Seoul.
Raminta Dvariškytė is a Lithuanian swimmer who specialized in breaststroke events. She represented her nation Lithuania at the 2008 Summer Olympics, and has claimed multiple Lithuanian championship titles and two national records in both the breaststroke and medley relay events.
Katharina Schiller is a German swimmer, who specialized in freestyle and individual medley events. Schiller won a bronze medal, as a member of the German swimming team, at the 2007 Summer Universiade in Bangkok, Thailand with a final time of 3:42.68. Schiller is a member of the swimming team for VfV Hildesheim, and is coached and trained by Jacqueline Zenner. She is also a graduate of mathematics and sports science at the University of Hildesheim.
Maiko Fujino is a Japanese swimmer, who specialized in long-distance freestyle and individual medley events. She represented her nation Japan at the 2008 Summer Olympics, and has won a career total of six medals in a major international competition, spanning the Pan Pacific Championships and three editions of the Asian Games. Fujino was also a student at Takushoku University in Tokyo.
Julie Hjorth-Hansen is a Danish former swimmer, who specialized in freestyle and individual medley events. She placed among the top 10 swimmers in the 200 m individual medley at the 2008 Summer Olympics, and has won a bronze medal at the 2004 European Short Course Swimming Championships in Vienna, Austria in 2:13.03.
Danil Bugakov is an Uzbek former swimmer, who specialized in backstroke, freestyle and individual medley events. He won two medals for the 50 m backstroke at the Asian Swimming Championships. He is also the brother of freestyle swimmer and three-time Olympian Mariya Bugakova.
Łukasz Wójt is a Polish swimmer, who specialized in middle-distance freestyle and individual medley events. He represented his nation Poland at the 2008 Summer Olympics, and has won two bronze medals in a major international competition, spanning the 2007 Summer Universiade in Bangkok, Thailand, and the 2008 European Short Course Championships in Rijeka, Croatia. Apart from his international career, Wojt has also claimed multiple Polish championship titles and currently holds the national record in the 200 (1:54.81) and 400 m individual medley (4:03.20), both set at the FINA World Cup meet in Berlin, Germany.
Jessica Evelyn Pengelly is a South African-born Australian swimmer, who specializes in freestyle and individual medley events. A 2008 Olympian, she has claimed multiple South African championship titles and national records in the individual medley, and won a total of five medals at the 2007 All-Africa Games in Algiers, Algeria. Pengelly also set two South African records in the freestyle relays at the 2008 FINA World Short Course Championships in Manchester, England, and at the 2011 Summer Universiade in Shenzhen, China.
Melissa Jane Corfe is a South African swimmer, who specialised in freestyle and backstroke events. She is a multiple-time South African champion and record holder for her respective events. Corfe represented her nation South Africa at the 2008 Summer Olympics, and has won a total of five medals, including three golds in the women's freestyle, at the 2007 All-Africa Games in Algiers, Algeria. She also set two national records, as a member of the South African swimming team, in the freestyle and medley relays, at the 2008 FINA World Short Course Championships in Manchester, England.
Marina Vladimirovna Mulyayeva is a Kazakh former swimmer, who specialized in sprint freestyle and individual medley events. She is a six-time national record holder, a multiple-time ACC titleholder, and a one-time NCAA Honorable Mention All-American swimmer. Mulyayeva is also a varsity swimmer for the Maryland Terrapins and an international business major at the University of Maryland in College Park, Maryland.
Svetlana Anatolyevna Karpeyeva is a Russian swimmer, who specialized in freestyle and individual medley events. She has been selected to the Russian swimming team in a medley double at the 2008 Summer Olympics, and also claimed three bronze medals in a major international competition, spanning two editions of the Summer Universiade.
Petra Klosová is a Czech swimmer who specialized in freestyle and backstroke events. She is a two-time Olympian and a multiple-time national champion and record holder for the freestyle and backstroke events.
Duncan William MacNaughton Scott is a Scottish swimmer representing Great Britain at the FINA World Aquatics Championships, LEN European Aquatics Championships, European Games and the Olympic Games, and Scotland at the Commonwealth Games. Scott made history after winning four medals - more than any other British athlete at a single Olympic Games - in Tokyo 2020, simultaneously becoming Great Britain's most decorated swimmer in Olympic history. With an additional gold and silver medal in Paris 2024 bringing his total to eight, Scott became Scotland's most-decorated Olympian, and is currently tied with Bradley Wiggins as the second most-decorated Olympian in British history. Scott is the only athlete in the top three to still be actively competing, and the only member of the top four who is not a track cyclist.
Tunisia 
