The swimming competitions at the 2000 Summer Olympics in Sydney took place from 16 to 23 September 2000 at the Sydney International Aquatic Centre in Homebush Bay. It featured 32 events, and a total of 954 swimmers from 150 nations.
The women's 100 metre backstroke 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.
Natalie Anne Coughlin Hall is an American former competition swimmer and twelve-time Olympic medalist. While attending the University of California, Berkeley, she became the first woman ever to swim the 100-meter backstroke in less than one minute—ten days before her 20th birthday in 2002. At the 2008 Summer Olympics, she became the first U.S. female athlete in modern Olympic history to win six medals in one Olympiad, and the first woman ever to win a 100-meter backstroke gold in two consecutive Olympics. At the 2012 Summer Olympics, she earned a bronze medal in the 4×100-meter freestyle relay.
The women's 200-metre freestyle event at the 2000 Summer Olympics took place on 18–19 September at the Sydney International Aquatic Centre in Sydney.
The women's 800 metre freestyle event at the 2000 Summer Olympics took place on 21–22 September at the Sydney International Aquatic Centre in Sydney, Australia.
The women's 100 metre backstroke event at the 2000 Summer Olympics took place on 17–18 September at the Sydney International Aquatic Centre in Sydney, Australia.
Emily Jane Seebohm, OAM is an Australian swimmer and television personality. She has appeared at four Olympic Games between 2008 and 2021; and won three Olympic gold medals, five world championship gold medals and seven Commonwealth Games gold medals.
Katinka Hosszú is a Hungarian competitive swimmer specialized in individual medley events. She is a three-time Olympic champion and a nine-time long-course world champion. She is the owner of a Budapest-based swim school and swim club called Iron Swim Budapest, and a co-owner and captain of Team Iron, founding member of the International Swimming League.
Robert "Bobby" Hurley is an Australian swimmer and former World Record holder in the short-course 50 metres Backstroke and 2012 World Champion in the same event. In 2009 he won a bronze medal as a team member on the 4 × 200 m Freestyle relay at the FINA World Championships in Rome. He has five FINA World Championship medals to his name, two gold, one silver and two bronze.
Melissa Franklin Johnson is an American former competitive swimmer and five-time Olympic medalist. She held the world record in the 200-meter backstroke. As a member of the U.S. national swim team, she also held the world records in the 4×100-meter medley relay.
The women's 200 metre freestyle event at the 2012 Summer Olympics took place on 30–31 July at the London Aquatics Centre in London, United Kingdom.
The women's 200-metre backstroke event at the 2012 Summer Olympics took place on 2–3 August at the London Aquatics Centre in London, United Kingdom.
Kayla Clarke is an Indigenous Australian swimmer who represented Australia at the 2012 Summer Paralympics in swimming, and has medalled at the 2010 Australian Disability Age Group Nationals, and 2010 International Paralympic Swimming World Championships, 2009 Queensland State Championships, 2009 Queensland Secondary School Titles, and 2009 Global Games. She competes in a number of events, including the 100m freestyle, 100m backstroke, 100m breaststroke, 100m butterfly and 200m individual medley.
Kara Leo is an Australian swimmer. She has been selected to represent Australia at the 2012 Summer Paralympics in the S14 200m freestyle and 100m backstroke swimming events.
Tsai Shu-min is a retired Taiwanese swimmer, who specialized in sprint and middle-distance freestyle, but also competed in backstroke and in individual medley. She represented Chinese Taipei in two editions of the Olympic Games, and later earned four medals in swimming, including her first ever gold, at the 1998 Asian Games in Bangkok, Thailand.
Choi Soo-min is a South Korean former swimmer, who specialized in backstroke events. She won a bronze medal, as a 17-year-old, at the 1998 Asian Games, and later represented South Korea at the 2000 Summer Olympics.
Regan Smith is an American competitive swimmer. As of 2024, Smith trains under Bob Bowman with Longhorn Aquatics. She is the world junior record holder in the women's long course 100-meter backstroke and 200-meter backstroke; the world record holder in the long course 100-meter backstroke; and the former record holder in the 200-meter backstroke. She competed at the 2020 Summer Olympics in three events representing the United States, winning a bronze medal in the 100-meter backstroke, a silver medal in the 200-meter butterfly, and a silver medal in the 4×100-meter medley relay. At the World Aquatics Championships, she won individual gold medals in the 200-meter backstroke in 2019 and the 100-meter backstroke in 2022 and a relay gold medal swimming the backstroke leg of the 4x100 medley relay in 2023.
Kaylee Rochelle McKeown is an Australian swimmer and triple Olympic gold medalist. She is the world record holder in the long course 50 metre backstroke and both the long course and short course 200 metre backstroke. She won gold in both the 100 metre and 200 metre backstroke, as well as the 4×100 metre medley relay at the 2020 Summer Olympics staged in Tokyo in 2021. In 2023, she was named as the "Best Female Swimmer of the Year" by World Aquatics, after sweeping gold in all three events of backstroke at all three World Cup legs, held in Berlin, Athens and Budapest in October, 2023.
Madeleine "Maddie" McTernan is an Australian Paralympic swimmer. She represented Australia at the 2020 Summer Paralympics where she won a silver medal.
Summer McIntosh is a Canadian competitive swimmer. A four-time World Aquatics champion and two-time Commonwealth Games gold medalist, she is the current world record holder in the women's 400 metre individual medley.
