Sri Lanka participated at the 2012 Summer Olympics in London, which was held from 27 July to 12 August 2012. The country's participation at London marked its sixteenth appearance in the Summer Olympics since its debut at the 1948 Summer Olympics, having missed only the 1976 Games. The delegation consisted of seven competitors: two athletics competitors, two badminton players one shooter and two short-distance swimmers. Cooray, Samarakoon and Karunaratne qualified for the Games by meeting their respective qualifying standards; the remainder of the team entered through wildcard or quota places. Karunarante was the flag bearer for the opening and closing ceremonies.
Martha Matsa is a Greek swimmer, who specialized in sprint freestyle events. She is a two-time Olympian, and a member of the swimming team for HAN Thessaloniki.
Nieh Pin-chieh is a Taiwanese swimmer, who specialized in sprint freestyle events. She represented the Chinese Taipei national team in two editions of the Olympic Games, competing in a sprint freestyle double.
Irina Shlemova is an Uzbekistani former swimmer, who specialized in sprint freestyle events. She is a two-time Olympian and a member of Oltin Suv Swimming Club, under the tutelage of her personal coach Daniya Galandinova.
Ragnheiður Ragnarsdóttir, also known as Ragga Ragnars is an Icelandic actress and former swimmer, who specialised in sprint freestyle events. She is a multiple-time Icelandic record holder in both long and short course freestyle. After retiring from swimming, Ragnheiður studied acting and has played the role of Gunnhild on the TV series Vikings since 2018.
Sandra Kazíková is a Czech former swimmer, who specialized in sprint freestyle events. She posted a long-course national record time of 25.99 seconds, by winning the 50 m freestyle at the 2008 Czech Winter Championships in Pardubice. Kazikova is also a member of the swimming team for Slavia VŠ Plzeň, and is coached and trained by Ivana Felgrova.
Agnese Ozoliņa is a Latvian former swimmer, who specialized in sprint freestyle events. She is a three-time Olympian, a multiple-time Latvian and Baltic record holder, and a seven-time All-North Coast Atlantic Conference swimmer. She is also a varsity swimmer for the Kenyon Ladies, and an economics graduate at Kenyon College in Gambier, Ohio.
Pedro Nuno Gonçalves Conceição Silva is a Portuguese former swimmer, who specialized in sprint freestyle events. He is a two-time Olympian and a former Portuguese record holder in the 50 m freestyle (22.86). Silva is a resident athlete for Sport Algés e Dafundo, and is trained by his long-time coach, director, and mentor Mário Madeira.
Maria Tregubova is a Moldovan former swimmer, who specialized in sprint freestyle events. She is a two-time Olympian and a member of the swimming team for Olimpia Chişinău.
Melanie Slowing de Montenegro is a Guatemalan former swimmer, who specialized in sprint freestyle events. Slowing qualified for the women's 50 m freestyle, as a 31-year-old, at the 2004 Summer Olympics in Athens, by breaking a Guatemalan record and posting a FINA B-cut of 26.89 from the Central American and Caribbean Championships in Mexico City. She topped the fourth heat by less than 0.04 of a second ahead of Moldova's Maria Tregubova in 27.44. Slowing failed to advance into the semifinals, as she placed forty-sixth overall out of 75 swimmers on the last day of preliminaries.
Roshendra Julienne Mercedes Vrolijk is an Aruban former swimmer, who specialized in sprint freestyle events. She is one of Aruba's first Olympic swimmers, alongside Davy Bisslik, and also a two-time Olympian.
Jakie Kim Wellman is a Zambian swimmer, who specialized in sprint freestyle events. She is a high school graduate of Kelly College in Devon, England, and a member of the swimming team for the Missouri State Bears, while attending the Missouri State University in Springfield, Missouri, United States.
Geraldine Arce Vanegas is a Nicaraguan swimmer, who specialized in sprint freestyle events. Arce qualified for the women's 50 m freestyle, as a 16-year-old, at the 2004 Summer Olympics in Athens, by receiving a Universality place from FINA, in an entry time of 28.15. She challenged seven other swimmers in heat four, including 31-year-old Melanie Slowing of Guatemala. She edged out Sri Lanka's Menaka de Silva to take a sixth spot by two tenths of a second (0.20) in 28.73. Arce failed to advance into the semifinals, as she placed fifty-first overall out of 75 swimmers on the last day of preliminaries.
Sade Daal is a Surinamese swimmer, who specialized in sprint freestyle events. Daal qualified for the women's 50 m freestyle, as a 15-year-old, at the 2004 Summer Olympics in Athens, by receiving a Universality place from FINA, in an entry time of 29.14. She challenged seven other swimmers in heat four, including 31-year-old Melanie Slowing of Guatemala. She rounded out the field to last place in 29.27, just 0.13 of a second off her personal best. Daal failed to advance into the semifinals, as she placed fifty-fourth overall out of 75 swimmers on the last day of preliminaries.
Eva Donde is a Kenyan swimmer, who specialized in sprint freestyle events. She held Kenyan records in long and short course 50 m freestyle, until they were both broken by Achieng Ajulu-Bushell in 2009. Donde is also a member of Otter Club, and is trained by her longtime coach Whitney Pragassa.
Tracy Ann Route is a Micronesian former swimmer, who specialized in sprint freestyle and butterfly events. She is a two-time Olympian, and holds numerous Pacific age group records in the freestyle and butterfly. She was the first woman to represent the Federated States of Micronesia at the Olympics.
Christal Ariana Clashing O'Reilly is an Antiguan swimmer, who specialized in sprint freestyle events. She also completed a Trans-Atlantic crossing as part of an all-woman team. As a one-time Olympian (2004), she is coached and trained by her mother Edith O'Reilly Clashing, who founded the Wadadli Aquatic Racers (WAR), an elite swim club in Antigua. Her sister Karin O'Reilly Clashing competed in the 50-metre freestyle at the 2012 Summer Olympics in London.
Matthew Duncan Abeysinghe, OLY is a competitive swimmer who has represented Sri Lanka at numerous international competitions, including the 2016 and 2020 Olympics in Rio de Janeiro and Tokyo respectively. Abeysinghe trained under his coach and father, Manoj Abeysinghe, with Killer Whale Aquatics, until his departure for higher education, where he resumed his training at Ohio State University in the US. Abeysinghe is regarded as the greatest swimmer and one of the most accomplished athletes Sri Lanka has ever produced.
Kimiko Shihara Raheem is a Sri Lankan national swimmer who has represented her country at several international competitions. She represented her country at the 2016 Olympic Games in Rio de Janeiro, Brazil. She won multiple gold medals at the 2016 South Asian Games in the backstroke and freestyle events. She won the highest number of medals by a Sri Lankan woman at the 2016 South Asian Games in India, and was named Best Female Athlete of the Games by the Bangladesh Sports Press Association. She is the younger sister of Mayumi Raheem and Machiko Raheem both of whom hold national records themselves. She was a semi-finalist at the 100m backstroke event at the 2014 Commonwealth Games in Glasgow. She holds numerous Sri Lankan national records and South Asian records in her name.
Cherantha De Silva is a Sri Lankan medal-winning swimmer, who has represented his country at 5 FINA World Championship's, 3 FINA World Cup's, 2 Commonwealth Games, 1 Asian Games as well as 1 South Asian Games, winning 7 medals. De Silva holds 6 national records . As well he was qualified with 4 World championship B standards(B cuts) for the 2018, 14th FINA World Swimming Championships held in Hangzhou, China. He narrowly missed the A standard in the 50m Butterfly (SCM) clocking 23.48. While the A standard could have made history for Sri Lanka as the first Sri Lankan to achieve the A standard he missed it by 0.2 seconds.
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