Medley swimming is a combination of four different swimming strokes into one race. This race is either swum by one swimmer as individual medley (IM) or by four swimmers as a medley relay.
Tracy Anne Stockwell, OAM,, née Tracy Anne Caulkins, is an American former competition swimmer, three-time Olympic gold medalist, five-time world champion, and former world record-holder in three events.
Kathleen Elizabeth Hersey is an American competition swimmer who represented the United States at the 2008 and 2012 Summer Olympics and finished fourth in the 200-meter butterfly in 2012.
Mireia Belmonte García is a Spanish Olympic, world, and European champion swimmer. She is the former world record holder in the short course 200 metre butterfly, 400 metre individual medley, 400 metre freestyle, 800 metre freestyle, and 1500 metre freestyle. She was the first Spanish woman to win a gold medal in swimming at an Olympic Games and is widely considered to be the greatest Spanish swimmer of all time.
Martin Liivamägi is an Estonian swimmer, who specialized in breaststroke and individual medley events. He is a two-time Olympian, a 2010 Pac-10 champion in the 200 m individual medley, a double NCAA team titleholder, a 43-time Estonian swimming champion, and a 24-time national record holder in different age groups. He also won a silver medal in the same stroke at the 2006 European Junior Swimming Championships in Palma de Mallorca, Spain.
Katinka Hosszú is a Hungarian former 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 was captain of Team Iron, founding member of the International Swimming League.
Diane Bui Duyet, sometimes spelled "Bui-Duyet", is a French New Caledonian swimmer. Due to the New Caledonia's status as an overseas territory of France, Bui Duyet competes for New Caledonia in regional (Pacific) competitions and for France in continental and above competitions. At the 2007 and 2011 Pacific Games, Bui Duyet swam on several relay teams together with Lara Grangeon, who also represents both France and New Caledonia.
Teigan Van Roosmalen is an Australian Paralympic S13 swimmer. She has Usher Syndrome type 1 legally blind and Profoundly deaf. She had a swimming scholarship from the Australian Institute of Sport 2009-2012. Her events are the 100 m breaststroke, 200 m individual medley, 50 m and 100 m freestyle. She competed at the 2011 Para Pan Pacific Championships in Edmonton, where she won a gold medal in the S13 400 freestyle event. She competed at the 2008 Summer and 2012 Summer Paralympics.
Nguyễn Thị Ánh Viên is a Vietnamese swimmer. She swam for Vietnam at the 2016 Olympics. At the 2014 Asian Games, she won Vietnam's first-ever medal in swimming. She has been named Vietnam's Athlete of the Year in both 2013 and 2014. By the end of 2014, she holds the Vietnamese records in 14 of the 17 long-course individual events. At the 2012 Olympics, she swam the 200 Backstroke and the 400 Individual Medley. In addition to her competitive swimming career, Ánh Viên also serves in the Vietnamese army in the rank of major.
Julia Hassler is an Olympic and national-record holding swimmer from Liechtenstein. She swam for and was Liechtenstein closing-ceremony flagbearer at the 2012 Olympics. She has also swam for Liechtenstein at several other international competitions including the: World Championships (2011), Games of the Small States of Europe, European Championships (2014), Short Course Worlds and Youth Olympics (2010).
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.
Kosuke Hagino is a Japanese former competitive swimmer who specialized in the individual medley and 200 m freestyle. He is a four-time Olympic medalist, most notably winning gold in the 400 m individual medley at the 2016 Summer Olympics.
Pavel Paulavich Sankovich is a Belarusian swimmer, who specialized in sprint backstroke and butterfly events. He represented his native Belarus in three editions of the Olympic Games, and has won a total of seven bronze medals in major international competition, in both the long and short course European Championships.
Adzo Rebecca Kpossi is a Togolese swimmer who specialises in butterfly and freestyle. Kpossi competed in both the 2012 and 2016 Summer Olympics. At both of her Olympics, she competed in the 50 metre freestyle. She has also competed in two World Championships, a World Short Course Championship and an African Games.
Daiya Seto is a Japanese professional swimmer who specializes in individual medley, butterfly, breaststroke, and freestyle events. He holds the world record in the short course 400-metre individual medley and formerly held the world record in the short course 200-metre butterfly. He won the gold medal in the 400-metre individual medley at the 2012, 2014, 2016, 2018, 2021, and 2022 world short course championships, as well as at the 2013, 2015, and 2019 world long course championships.
Andrew Hammond Seliskar is a retired American competitive swimmer. He won the gold medal in the 200 meter butterfly at the 2013 FINA World Junior Swimming Championships in Dubai, breaking the Championships record.
Anastasia "Nastiya" Gorbenko is an Israeli competitive swimmer. She competes in the backstroke, breaststroke, freestyle, and medley. She has won 8 World and European championships gold medals, competed at 2 Olympic finals, broken most of the Israeli national records for women and mixed relays, and is considered to be Israel's greatest swimmer of all time. In February 2024, Gorbenko won a silver medal at the Doha World Championships in the women's 400 meters individual medley. Gorbenko represented Israel at the 2024 Summer Olympics in swimming in the 100m backstroke, 200m backstroke, 100m breaststroke, 200m individual medley, 400m individual medley, 4x200m freestyle relay, and mixed 4x100m medley relay.
Alexandra Jane Walsh is an American competitive swimmer and swimsuit model. She is known for her versatility in all four strokes that has allowed her to have success in medley events. Growing up, Walsh was a phenom who started setting national age group records at 12 in 2014. She led her high school team to multiple state and national championships. At the 2019 Pan American Games, she won three gold medals.
Katherine Cadwallader Douglass is an American competitive swimmer. A versatile swimmer who competes in many events, Douglass won her first major international medal at the 2020 Olympic Games and won three medals at the 2022 World Championships. She then won six medals, including two golds, at the 2023 World Championships. At the 2024 World Championships, she won five medals, including two golds. Douglass won four medals, including two golds, at the 2024 Olympic Games; she became the Olympic champion in the 200 m breaststroke. During her career, she has also won 19 total medals, including 11 golds, at the Short Course World Championships.
Ellen Walshe is an Irish swimmer. She competed at the 2020 Summer Olympics in the 100 metre butterfly and the 200 metre individual medley. At the 2021 World Swimming Championships, she won the silver medal in the 400 metre individual medley. She was the first swimmer representing Ireland to win a medal higher than a bronze medal at a World Swimming Championships. Collegiately, she competes for the Tennessee Volunteers.
France 
New Caledonia 
