The women's 100 metre breaststroke event at the 2004 Olympic Games was contested at the Olympic Aquatic Centre of the Athens Olympic Sports Complex in Athens, Greece on August 15 and 16.
Leisel Marie Jones, OAM is an Australian former competition swimmer and Olympic gold medallist. A participant in the 2000 Summer Olympics – at just 15 years old – and 2004 Summer Olympics, she was part of gold-medal-winning Australian team in the women's 4×100-metre medley relay at the Athens Games in 2004 and a gold medallist for 100-metre breaststroke in the 2008 Summer Olympics in Beijing.
QI Hui is an Olympic and former world record holding breaststroke swimmer from China.
The women's 100 metre breaststroke event at the 2000 Summer Olympics took place on 17–18 September at the Sydney International Aquatic Centre in Sydney, Australia.
Annamay Pierse is a former competitive swimmer who represented Canada in major international swimming championships including the Summer Olympics, FINA World Championships, Commonwealth Games and Pan Pacific Championships.
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.
Rebecca Soni is an American former competition swimmer and breaststroke specialist who is a six-time Olympic medalist. She is a former world record-holder in the 100-meter breaststroke and the 200-meter breaststroke, and is the first woman to swim the 200-meter breaststroke in under 2 minutes 20 seconds. As a member of the U.S. national team, she held the world record in the 4×100-meter medley relay from 2012 to 2017.
The men's 100 metre breaststroke event at the 2008 Summer Olympics took place on 9–11 August at the Beijing National Aquatics Center in Beijing, China.
The men's 200 metre breaststroke event at the 2008 Olympic Games took place on 12–14 August at the Beijing National Aquatics Center in Beijing, China.
The women's 200 metre breaststroke event at the 2008 Olympic Games took place on 13–15 August at the Beijing National Aquatics Center in Beijing, China.
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.
Jeong Da-rae is a South Korean former swimmer, who specialized in breaststroke events. She is a gold medalist in the 200 m breaststroke at the 2010 Asian Games in Guangzhou, China.
The women's 100 metre breaststroke event at the 2012 Summer Olympics took place on 29–30 July at the London Aquatics Centre in London, United Kingdom.
The women's 200 metre breaststroke event at the 2012 Summer Olympics took place on 1–2 August 2012 at the London Aquatics Centre in London, United Kingdom.
The women's 4 × 100 metre medley relay event at the 2012 Summer Olympics took place on 3–4 August at the London Aquatics Centre in London, United Kingdom.
Rie Kaneto is a Japanese competitive swimmer who specializes in breaststroke events. She won the gold medal in the 200 meter breaststroke at the 2016 Summer Olympics.
Megumi Taneda is a Japanese swimmer, who specialized in breaststroke events. She claimed the 200 m breaststroke title in a close race against U.S. swimmer and eventual Olympic champion Rebecca Soni by 0.03 of a second at the 2005 Summer Universiade in Izmir, Turkey with a time of 2:27.81. Taneda is an economics graduate at Kanagawa University in Kanagawa.
Emma Kathryne Robinson is an Irish former swimmer, who specialized in breaststroke events. She is a former Irish record holder in the 100 m breaststroke and a member of the swimming team at Loughborough University, under her personal coach Paul Dennis.
The women's 100 metre breaststroke event at the 2016 Summer Olympics took place on 7–8 August at the Olympic Aquatics Stadium.
The women's 200 metre breaststroke event at the 2016 Summer Olympics took place on 10–11 August at the Olympic Aquatics Stadium.
