Moshé Pinchas Feldenkrais was a Ukrainian-Israeli engineer and physicist, known as the founder of the Feldenkrais Method.
Adrian David Moorhouse MBE is an English former competitive swimmer who dominated British swimming in the late 1980s. He won the gold medal in the 100-metre breaststroke at the 1988 Summer Olympics in Seoul, Korea. Since then Moorhouse, a former pupil of Bradford Grammar School, has translated his sporting success to a successful career in the business world, as managing director of Lane4, a consultancy helping individuals and teams around the world reach their fullest potential.
Nelson W. Diebel is an American former competition swimmer, Olympic champion, and former world record-holder.
Stephen K. Lundquist is an American former competition swimmer who is an Olympic gold medalist and former world record-holder. At the 1984 Summer Olympics in Los Angeles, he won gold medals in the 100-meter breaststroke and the 400-meter medley relay.
Ian Lovett O'Brien is an Australian breaststroke swimmer of the 1960s who won the 200 metre breaststroke at the 1964 Summer Olympics in Tokyo in world record time. He won five Commonwealth Games gold medals and claimed a total of nine individual and six relay titles at the Australian Championships, before retiring at the age of 21 due to financial pressures.
Alfred Nakache (1915–1983) was a Jewish French swimmer and water polo player. A member of the French team for the 1936 Berlin Summer Olympic Games, he also swam in the first post-war Summer Olympics in London in 1948. He and Ben Helfgott are the only known Jewish athletes to have competed in the Olympics after surviving the Holocaust.
Fritz Albert Erich "Ete" Rademacher was a German breaststroke swimmer and water polo goalkeeper who competed at the 1928 and 1932 Olympics. In 1928 he was a member of the German water polo team that won the gold medal, he also won a silver medal in the 200 metres breaststroke. Four years later he won another silver medal with the German water polo team.
Robert Danforth Skelton was an American competition swimmer for Northwestern University, a 1924 Olympic champion, and former world record-holder.
Moniek Nijhuis is a Dutch swimmer who specializes in breaststroke. After she had been a professional swimmer, under the guidance of Martin Truijens, for several years she took a break from professional swimming after she missed out on the Dutch team for the 2008 Summer Olympics. She wanted to concentrate more on her studies and train less. She still swims at De Dolfijn swimming club in Amsterdam.
Felipe Alves França da Silva is a Brazilian breaststroke swimmer, who competed for his country in three Olympic Games.
Giedrius Titenis is a Lithuanian swimmer, who specialized in breaststroke events. He is a four-time Olympian, a multiple-time Lithuanian record holder in the men's breaststroke, and a double swimming champion in the same discipline at the 2011 Summer Universiade in Shenzhen, China. Titenis is also a member of Anykščiai Swimming Club, and is coached and trained by Žilvinas Ovsiukas.
Swimming has been recorded since prehistoric times; the earliest recording of swimming dates back to Stone Age paintings from around 7,000 years ago. In 1578, Nikolaus Wynmann, a German professor of languages, wrote the first swimming book.
Wael Koubrousli / Kobrosly is a Lebanese/French swimmer who has competed at the 2008 Olympic Games, and the 2012 Olympic Games. Wael represented Lebanon in 7 World Championships from 2006 to 2013, at Shanghai, Melbourne, Manchester, Rome, UAE, Shanghai and Barcelona. He recorded more than 20 local swimming records, including in the 100-meter and 200-meter breaststroke. At the 2007 Arab Games, he won the silver medal in the 100m breaststroke.
Petra Chocová is a Czech swimmer specialising in breaststroke.
Nicolas Fink is an American competitive swimmer. He is a five-time world champion in breaststroke events and a 2024 Olympic Silver Medalist in the 100 meter breaststroke. He is a world record holder in the short course 4×100 meter medley relay and 4×50 meter mixed medley relay. He is the Americas record holder in the short course 50 meter breaststroke, 100 meter breaststroke, and 200 meter breaststroke as well as the American record holder in the long course 50 meter breaststroke. In the 50 meter breaststroke, he won the World Short Course titles in 2021 and 2022 and World Long Course title in 2022. In the 100 meter breaststroke, he is the 2022 World Short Course gold medalist. In the 200 meter breaststroke, he is the 2021 World Short Course gold medalist.
Adam George Peaty is an English competitive swimmer who specialises in the sprint breaststroke events. He won the gold medal in the 100 metre breaststroke at the 2016 Summer Olympics, the first by a male British swimmer in 24 years, and retained the title at the 2020 Summer Olympics in 2021, the first British swimmer ever to retain an Olympic title.
Qin Haiyang is a Chinese swimmer who specializes in the breaststroke and individual medley. He holds the world record in the 200m breaststroke, which he set at the 2023 World Aquatics Championships. At the same competition, Qin became the first swimmer in history to win all three breaststroke events at a single edition of the championships. Qin was also the former world junior record holder in the 200m breaststroke and 200m individual medley. In 2023, Qin became the first Asian swimmer to be named as the Male Swimmer of the Year by World Aquatics.
Izaac Keith Stubblety-Cook is an Australian swimmer. He is a former world record holder in the long course 200 metre breaststroke.
Léon Marchand is a French swimmer. He is the world record holder in the long course 400 metres individual medley and short course 200 metres individual medley; the Olympic record holder in the 200 metres butterfly, the 200 metres breaststroke, the 200 metres individual medley and the 400 metres individual medley; and the French record holder in the long course 200 metre individual medley, 200 metre butterfly and 200 metre breaststroke. At the 2024 Summer Olympics, he won gold medals in the 200 m medley, 200 metre breaststroke, 200 metre butterfly, and 400 metre medley. He became the fourth swimmer and third male swimmer in Olympic history to win four individual gold medals at a single Games.
France 
