Yuliya Andreyevna Yefimova is a Russian competitive swimmer. She is the Russian record holder in the 200 metre individual medley, 50 metre breaststroke, 100 metre breaststroke, and 200 metre breaststroke. After making her Olympic debut in 2008, she went on to win the bronze medal in the 200 metre breaststroke in 2012, and silver medals in the 100 metre and 200 metre breaststroke in 2016. She is a six-time World Champion, winning the 50 metre breaststroke in 2009 and 2013, the 100 metre breaststroke in 2015, and the 200 metre breaststroke in 2013, 2017, and 2019. In 2019, she became the first woman to win the 200 metre breaststroke at a FINA World Aquatics Championships three times. She is a former world record holder in the long course 50 metre breaststroke. She has won 109 medals, including 48 gold medals, at Swimming World Cups.
Eric Lee Shanteau is an American former competition swimmer who won two gold medals as a member of winning United States relay teams at the World Championships. He was a member of the 2008 and 2012 U.S. Olympic teams, and earned a gold medal as a member of the winning U.S. team in the 4×100-meter medley relay at the 2012 Summer Olympics in London. Shanteau formerly held the 4×100-meter medley relay world record as a member of the U.S. team that competed at the 2009 FINA World Championship in Rome.
Jose Guilherme Couto is a Portuguese swimmer. He competed at the 1996 Summer Olympics, the 2000 Summer Olympics, and the 2004 Summer Olympics.
Tyler Tennant McGill is an American former competition swimmer who is a butterfly specialist and has been a member of two world champion relay teams from the United States. He was a member of the 2012 United States Olympic Team and earned a gold medal as a member of the winning U.S. team in the 4×100-meter medley relay at the 2012 Summer Olympics.
Kasey Carlson is an American competition swimmer from Walnut Creek, California.
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.
Kenneth King-him To was a Hong Kong Australian swimmer who practised individual medley, freestyle, butterfly and breaststroke. He won 6 medals at the 2010 Summer Youth Olympics, was the male overall winner of the 2012 FINA Swimming World Cup and was a World Championships silver medallist. He was the holder of 16 Hong Kong national swimming records.
Tatiane Mayumi Sakemi is a Brazilian swimmer of Japanese ancestry, who specialized in breaststroke events. She is a member of the swimming team for Esporte Clube Pinheiros in São Paulo.
James Wilby is a British competitive swimmer who specialises in the breaststroke. Wilby is the 2018 Commonwealth Games champion in 200 metre breaststroke, the 2022 Commonwealth Games champion in 100 metre breaststroke, and the 2022 European champion in 200 metre breaststroke. He formed part of the Great Britain team that won World Championship gold in the men's 4 x 100 metre medley relay in 2019, and the England team that won the Commonwealth Games Men's 4 x 100 metre medley relay in 2014 and 2022.
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.
Luka Mladenovic is an Austrian competitive swimmer. At the 2022 World Junior Championships, he won the gold medal and world junior title in the 100-metre breaststroke, the silver medal in the 200-metre breaststroke, and the bronze medal in the 50-metre breaststroke. He is a 2022 European Junior Championships silver medalist in the 200-metre breaststroke.
United States 
