Danil Haustov is an Estonian former swimmer, who specialized in sprint freestyle events. He set an Estonian record of 1:27.06, as a relay swimmer, in the 4×50 m freestyle at the 2008 European Short Course Swimming Championships in Rijeka, Croatia. Haustov is also a member of Kohtla-Järve Water Sport Club in Tallinn, and is coached and trained by Aleksandr Abel.
Nguyễn Hữu Việt was a Vietnamese swimmer who specialized in breaststroke events. He won a total of five medals, and set numerous records for both the 100 and 200 m breaststroke at the Southeast Asian Games (2003–2009).
Wickus Nienaber is a former Swazi swimmer, who specialized in breaststroke events. He is a four-time College Swimmer of the Year, a 2004 Atlantic Coast Conference champion, and owns at least 40 national age group records for the same stroke in Swaziland. He was a member of the swimming team for Florida State Seminoles under his coach Neil Harper, and a graduate with a Doctorate in computer science at the Florida State University in Tallahassee, Florida.
Jaclyn Pangilinan is a Filipino-American former swimmer, who specialized in breaststroke events. She is a two-time Filipino record holder, a four-time Ivy League champion in the 100 and 200 m breaststroke, and a multiple-time medalist at the Southeast Asian Games. Born to a Filipino father, and an American mother, Pangilinan holds a dual citizenship to compete collegiately and internationally in swimming.
Aurimas Valaitis is a Lithuanian former swimmer, who specialized in breaststroke events. He beat a 29-second barrier to earn a bronze medal in the 50 m breaststroke at the 2006 European Junior Swimming Championships in Palma de Mallorca, Spain, with his personal best of 28.98.
Lee Ji-young is a South Korean swimmer, who specialized in breaststroke events. She became the first female South Korean in history to train in the United States, and swim for the Peddie Aquatic Association in Hightstown, New Jersey.
Imaday Núñez González is a Cuban former swimmer, who specialized in breaststroke events. She won a total of three medals in the breaststroke and medley relay at the 1998 Central American and Caribbean Games in Maracaibo, Venezuela.
Ben-Rachmiel Labowitch is a New Zealand former swimmer, who specialized in breaststroke events. Since his mother is a New Zealand citizen, Labowitch claims a dual citizenship which allowed him to try out and make the New Zealand Olympic team. Labowitch is also a former member of North Shore Swim Club under his coach Thomas Ensorg, and a graduate of Drury University in Springfield, Missouri, where he played for the Drury Panthers.
Daniel Tam Chi-kin is a Hong Kong former swimmer, who specialized in breaststroke events. He is a two-time Olympian, and a double finalist in the 100 and 200 m breaststroke at the 2002 Asian Games in Busan, South Korea. Tam is a member of the swimming team for SLA Sports Club, and is trained by an Australian-born coach Anthony Giorgi.
Andrey Morkovin is an Uzbek former swimmer, who specialized in breaststroke events. Morkovin qualified for the men's 200 m breaststroke at the 2004 Summer Olympics in Athens, by clearing a FINA B-cut of 2:18.76 from the Russian Open Championships in Moscow. He challenged seven other swimmers in heat two, including dual citizen Mihail Alexandrov of Bulgaria. He raced to fifth place by seven tenths of a second (0.70) behind Algeria's Sofiane Daid in 2:18.48. Morkovin failed to advance into the semifinals, as he placed thirty-fourth overall in the preliminaries.
Aghiles Slimani is an Algerian former swimmer, who specialized in butterfly events. Slimani qualified for two swimming events at the 2004 Summer Olympics in Athens, by posting FINA B-standard entry times of 55.40 and 2:03.18 from the World Championships in Barcelona, Spain. In the 200 m butterfly, Slimani challenged seven other swimmers in heat two, including Olympic veteran Vladan Marković of Serbia. He raced to sixth place and thirty-first overall by 0.16 of a second behind Markovic in 2:04.93. In his second event, 100 m butterfly, Slimani placed forty-eighth on the morning's preliminaries. Swimming in heat three, he edged out Turkey's Onur Uras to take a seventh seed by fifteen hundredths of a second (0.15) in 56.22.
Andrei Capitanciuc is a Moldovan former swimmer, who specialized in breaststroke events. Capitanciuc qualified for the men's 100 m breaststroke at the 2004 Summer Olympics in Athens, by achieving a FINA B-standard of 1:04.98 from the Russian Open Championships in Moscow. He challenged seven other swimmers in heat two, including three-time Olympians Jean Luc Razakarivony of Madagascar and Yevgeny Petrashov of Kyrgyzstan. He shared a second seed with Saudi Arabia's Ahmed Al-Kudmani in a time of 1:05.65. Capitanciuc failed to advance into the semifinals, as he placed forty-seventh overall out of 60 swimmers on the first day of preliminaries.
Kyriakos Dimosthenous is a Cypriot former swimmer, who specialized in breaststroke events. Dimosthenous qualified for the men's 100 m breaststroke at the 2004 Summer Olympics in Athens, by achieving a FINA B-standard of 1:04.74 from the Greek Open Championships in Piraeus. He challenged seven other swimmers in heat three, including 15-year-old Nguyen Huu Viet of Vietnam. He edged out Estonia's Aleksander Baldin to take a sixth spot by a tenth of a second (0.10) with a time of 1:05.54. Dimosthenous failed to advance into the semifinals, as he placed forty-sixth overall out of 60 swimmers on the first day of preliminaries.
Arsenio Alexander López Rosario, also known as Alex Lopez, is a Puerto Rican former swimmer and three-time Olympian who specialized in breaststroke and individual medley events.
Oleg Sidorov is an Uzbek former swimmer, who specialized in breaststroke events. Sidorov qualified for the men's 100 m breaststroke at the 2004 Summer Olympics in Athens, by achieving a FINA B-standard of 1:04.91 from the Russian Championships in Moscow. He challenged seven other swimmers in heat two, including three-time Olympians Jean Luc Razakarivony of Madagascar and Yevgeny Petrashov of Kyrgyzstan. He rounded out the field to last place by more than half a second (0.50) behind Petrashov in 1:08.30. Sidorov failed to advance into the semifinals, as he placed fifty-sixth overall out of 60 swimmers on the first day of preliminaries.
Chisela Kanchela was a Zambian swimmer, who specialized in breaststroke events. He currently holds numerous Zambian age group records in all breaststroke distances, and is trained for the All Saints' College swimming team in Perth, Western Australia ever since he first appeared at the Olympics. Kanchela also competed at the Commonwealth Games in 2002 and 2006, but failed to reach the top 16 final.
Amar Shah is a Kenyan former swimmer who specialized in breaststroke, but also competed in the freestyle relays. He is a single-time Olympian (2004), and a two-time swimmer at the Commonwealth Games. Shah qualified for the semifinals in 2010 Commonwealth Games setting a national record in the 50m breaststroke in a time of 30.53. He currently holds three long-course Kenyan records in the 50, 100 and 200 m breaststroke. Shah also won a total of bronze medals, as a member of the Kenyan swimming team, in the freestyle and medley relays at the 2011 All-Africa Games in Maputo, Mozambique.
Nicole Zahnd is a retired Swiss swimmer, who specialized in sprint freestyle events. She was born in Bern. She is a two-time Olympian, and a top 8 finalist in the 200 m freestyle at the 2001 European Short Course Swimming Championships in Antwerp, Belgium. Zahnd played for two swimming clubs in Geneva, before she trained under head coach Dirk Reinecke as part of the Swiss national team. Zahnd is also the wife of former medley swimmer and two-time Olympian Yves Platel.
Raiko Pachel is an Estonian former swimmer, who specialized in breaststroke events. He is a single-time Olympian (2000), a double Baltic States swimming champion, and a former Estonian record holder in both 100 and 200 m breaststroke. Pachel is also a member of Keila Swim Club in Tallinn under head coach Tõnu Meijel.
Valērijs "Val" Kalmikovs is a Latvian former swimmer, who specialized in breaststroke and individual medley events. He is a two-time Olympian and a top 16 finalist in the 200 m breaststroke on his Olympic debut in Atlanta (1996). He still holds a Latvian record in the 200 m breaststroke (2:16.21) that stood for more than a decade. While studying in the United States, Kalmikovs achieved a sixth-fastest of all time in the 200-yard breaststroke at the 2000 NCAA Men's Swimming and Diving Championships. He has also been named a three-time Big-12 Conference Champion and a nine-time All-American, as a member of the University of Nebraska swimming and diving team. Since his sporting career ended in 2004, Kalmikovs has extensively traveled across the United States and Europe, working as a swimming coach. On September 9. 2019 Val became the first Latvian to swim across The English Channel. It took him 11 hours and 13 minutes (6pm-5am) to successfully finish the challenge.
Estonia 
