Grant George Hackett OAM is an Australian swimmer, most famous for winning the men's 1500 metres freestyle race at both the 2000 Summer Olympics in Sydney and the 2004 Summer Olympics in Athens. This achievement has led him to be regarded as one of the greatest distance swimmers in history. He also collected a gold medal in Sydney for swimming in the heats of the 4 × 200 m freestyle relay. He was well regarded for his versatility, and has held the long course world records in the 200 m, 800 m, and 1500 m freestyle events. He dominated the 1500 m event for a decade, being undefeated in the event in finals from 1996 until the 2007 World Aquatics Championships. In total, he has won 10 long-course world championship gold medals.
David Michael Rhys Davies is a Welsh former competitive swimmer who has represented Wales at the Commonwealth Games, and swam for Great Britain at Summer Olympics, world championships and European championships, winning medals in each of those major international championships. Davies specialised in long-distance freestyle and open water events. Born in Barry, Vale of Glamorgan, Davies swam for Wales at the 2002 and 2006 Commonwealth Games and represented Great Britain at the 2004, 2008 Olympics and 2012 Olympics. As of the end of 2010, he held the British Records in the 400-, 800- and 1500-metre freestyle events.
Craig Julian Stevens is an Australian former freestyle swimmer specialising in the 400m, 800m and 1500m freestyle events. He was an Australian Institute of Sport scholarship holder.
Fernando Eurico de Barros Oliveira da Fonseca e Costa is a Portuguese former swimmer, who specialized in long-distance freestyle events. He is a two-time Olympian, and currently holds the Portuguese record in the 1500 m freestyle from the 2007 Summer Universiade in Bangkok, Thailand.
Heiko Hell is a German former swimmer, who specialized in long-distance freestyle events. He is a nine-time German swimming champion in the 400, 800, and 1500 m freestyle (2000–2004), and also a three-time Olympic finalist. Hell is a member of Hamburg City Swimming Club, and is coached and trained by Dirk Lange.
Giancarlo Zolezzi Seoane is a Chilean former swimmer, who specialized in long-distance freestyle events. He is a multiple-time Chilean swimming champion and record holder in the 200, 400, 800, and 1500 m freestyle.
Charnvudth Saengsri is a Thai former swimmer, who specialized in long-distance freestyle events. He is a two-time silver medalist in the 1500 m freestyle at the Southeast Asian Games.
Georgios Diamantidis is a Greek former swimmer, who specialized in long-distance freestyle events. Diamantidis qualified for the men's 1500 m freestyle at the 2004 Summer Olympics in Athens, by clearing a FINA A-standard entry time of 15:09.25 from the Greece National Open in Thessaloniki. He challenged seven other swimmers on the fourth heat, including top medal favorite Larsen Jensen of the United States. He rounded out the field to last place by a 27-second margin behind Italy's Christian Minotti in 16:06.31. Diamantidis failed to advance into the final, as he placed thirty-first overall in the preliminaries.
Cho Sung-mo is a South Korean former swimmer, who specialized in long-distance freestyle events. He established a South Korean record of 15:12.32 to earn a silver medal in the 1500 m freestyle at the 2002 Asian Games in Busan. During his swimming career, Cho has been training most of the time between the United States and Mexico, under veteran coach and long-time mentor Jack Simon.
Han Kyu-chul is a South Korean former swimmer, who specialized in freestyle, butterfly, and individual medley events. He is a two-time Olympian, and an eight-time bronze medalist at the Asian Games.
Alexandros Aresti is a Cypriot former swimmer, who specialized in freestyle events. He is a two-time Olympian, and a Cypriot record holder in the 100 and 200 m freestyle.
Damian Arthur Christopher Alleyne is a Barbadian former swimmer who specialized in freestyle events. He is a two-time Olympian, a varsity swimmer for the Georgia Bulldogs, and a graduate of Bolles School and the University of Georgia, with a major in business administration.
Aytekin Mindan is a Turkish former swimmer, who specialized in freestyle events. He held a Turkish record of 1:50.40 in the 200 m freestyle, until it was matched by Kemal Arda Gurdal in 2012. He studied at Istanbul Bilgi University.
Georgios Dimitriadis is a Cypriot former swimmer, who specialized in individual medley events. He is a two-time Olympian, and a former Cypriot record holder in the 200, and 400 m individual medley and 400 m individual medley
Pilin Tachakittiranan is a Thai former swimmer, who specialized in freestyle and butterfly events. She is a two-time Olympian and a multiple-time age-group record holder in all freestyle distances. Regarded as Thailand's top female swimmer, she has won a total of five gold medals at the Southeast Asian Games.
Ratapong "Nuk" Sirisanont is a Thai former swimmer, who specialized in breaststroke, but also competed in long-distance freestyle and individual medley. He is a four-time Olympian, a three-time Asian Games participant, and a seven-time SEA Games athlete (1991–2003). Regarded as Thailand's top swimmer, he has won a total of sixteen medals at the Southeast Asian Games since 1995, and six at the Asian Games, including two golds in the 200 and 400 m individual medley. At the 1996 Summer Olympics in Atlanta, Sirisanont became the first Thai swimmer to reach the final twice. Sirisanont is also one of three Southeast Asian swimmers, along with Malaysia's Alex Lim and Philippines' Miguel Molina, to train for the California Golden Bears in the United States, under head coach Nort Thornton.
Neil Agius is a Maltese swimmer, former Olympian and world-record holder who specializes in long-distance freestyle events.
Diego Mularoni is a Sammarinese former swimmer, who specialized in freestyle events. He is a three-time Olympian, and a current Sammarinese record holder in the 100, 200, 400, and 1500 m freestyle since 2001. He has won a total of 13 medals at the Games of the Small States of Europe.
Kathryn Evans is an English former competitive swimmer who represented Great Britain in the Olympic Games. Evans specialised in freestyle and individual medley events. She is a two-time Olympian, and a double British champion in the 200 m individual medley. Evans also played for Nova Centurion Swim Club in Nottingham, under head coach Bill Furniss. Evans is the cousin of late rower Acer Nethercott, who competed in the men's eight at the 2008 Summer Olympics in Beijing.
Stephen Milne is a Scottish swimmer who competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil.
Great Britain 
