Trinidad and Tobago sent a delegation to compete at the 2008 Summer Olympics in Beijing, China. Its participation in the Beijing games marked its eighteenth Olympic appearance and fifteenth Summer Olympic appearance since its debut at the 1948 Summer Olympics in London, excluding its joint participation with Jamaica and Barbados in 1960 as the West Indies Federation. With 28 athletes, more Trinidadians had competed at the Olympics than in any other single Olympic Games in its history before Beijing. Athletes representing Trinidad and Tobago advanced past the preliminary or qualification rounds in twelve events and reached the final rounds in four of those events. Of those four events, silver medals were won in the men's 100 meters and in the men's 4x100 meters relay. The latter was upgraded to gold due to one member of the quartet that crossed the line first, Nesta Carter, testing positive for a banned substance, resulting in their disqualification. The nation's flag bearer at the opening ceremony that year was swimmer and Athens medalist George Bovell.
Lara Heinz is a retired Luxembourgian swimmer, who specialized in sprint freestyle events. She is a two-time national record holder for both the long and short course freestyle.
Rugilė Mileišytė, also known as Rugilė Binevičienė, is a Lithuanian swimmer, who specialized in sprint freestyle events. She is a multiple-time Lithuanian champion and a five-time national record holder for both the freestyle and medley relay events. Mileišytė is a member of the swimming team for the Washington State Cougars, and a graduate of social sciences at Washington State University in Pullman, Washington.
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.
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 played the role of Gunnhild on the TV series Vikings from 2018 to 2020.
Jana Klusáčková is a Czech former swimmer who specialized in sprint freestyle events. She is a two-time Olympian and a multiple-time Czech champion and record holder for the freestyle events. Klusackova also won a bronze medal in the 100 m freestyle at the 2005 Summer Universiade in Izmir, Turkey, in an outstanding time of 56.40 seconds.
Lára Hrund Bjargardóttir is an Icelandic former swimmer, who specialized in freestyle and individual medley events. She is a multiple-time Big West Conference honoree, four-time Icelandic record holder, and a member of the swimming team for the UC Irvine Anteaters at the University of California, Irvine.
Jana Kolukanova is a retired Estonian swimmer, who specialized in sprint freestyle events. She is a two-time Olympian, multiple-times champion of Estonia and one of the top European sprinters of her generation.
Yelena Alexeyevna Skalinskaya is a Kazakh former swimmer, who specialized in sprint freestyle and breaststroke events. She is a five-time national champion and record holder in the same stroke. Skalinskaya is a member of the swimming team for Maryland Terrapins, along with her fellow country teammate Marina Mulyayeva.
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.
George Gleason is a former swimmer from the U.S. Virgin Islands, who specialized in freestyle and backstroke events. He is a two-time Olympian, a swimming captain for the Yale Bulldogs, and a graduate of sociology (2001) at Yale University in New Haven, Connecticut. Gleason also capped his swimming career by an eleventh-place finish in the 200 m backstroke at the NCAA Swimming Championships in College Station, Texas, earning him All-American honors.
Shim Min-ji is a South Korean former swimmer, who specialized in freestyle and backstroke events. She is a two-time Olympian and a three-time relay medalist at the Asian Games (2002).
Dominique Lorraine Diezi is a Swiss former swimmer who specialized in sprint freestyle events. She is a two-time Olympian, a 32-time Swiss national champion, a multiple-time record holder in sprint freestyle, and a member of Switzerland's national swimming team (1992–2004). She also earned multiple All-American honors while studying in the United States.
Angela Dawn Chuck is a Jamaican former swimmer, who specialized in sprint freestyle events. She won a total of two medals, gold in the 200 m freestyle (2:07.81), and bronze in the 100 m freestyle (58.91), at the 2002 Central American and Caribbean Games in San Salvador, El Salvador. Chuck is a two-time Olympian and a psychology graduate of Brown University in Providence, Rhode Island.
Sung Yi-chieh is a Taiwanese former swimmer, who specialized in sprint freestyle events. Sung qualified for the women's 100 m freestyle at the 2004 Summer Olympics, by clearing a FINA B-standard entry time of 58.08 from the National University Games in Taipei. She challenged seven other swimmers on the second heat, including three-time Olympian Agnese Ozoliņa of Latvia. She raced to fifth place by 0.15 of a second behind Ozolina in 59.85. Sung failed to advance into the semifinals, as she placed forty-fourth overall in the preliminaries.
Larissa Inangorore is a Burundian former swimmer, who specialized in sprint freestyle events. Inangorore qualified for the women's 100 m freestyle at the 2004 Summer Olympics in Athens, by receiving a Universality place from FINA. She posted an invitation time of 1:26.31 at the All-Africa Games in Abuja, Nigeria. She participated in the first heat against two other swimmers Carolina Cerqueda of Andorra and Gloria Koussihouede. She finished behind Cerqueda in second spot by a wide 23.56-second margin in her personal best of 1:23.90. Inangorore failed to advance into the semifinals, as she placed forty-ninth overall in the preliminaries.
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.
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.
Siobhan Trichelle Cropper is a 2-time Olympian and swimmer from Trinidad and Tobago, who specialized in sprint freestyle and butterfly events. Cropper represented Trinidad and Tobago in two editions of the Olympic Games, and eventually captured the 100 m butterfly title at the 1998 Central American and Caribbean Games in Maracaibo, Venezuela. She also holds three Trinidadian records in a sprint freestyle and butterfly double, two NCAA championship titles and fourteen All-American honors, while attending Stanford University.
Trinidad and Tobago 
