The Maldives competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. The delegation's participation in the Athens Olympics marked the Maldives' fifth appearance at the Summer Olympics since their debut at the 1988 Summer Olympics in Seoul, South Korea. Four athletes competed across two sports; Sultan Saeed and Shifana Ali in track and field, and Hassan Mubah and Aminath Rouya Hussain in swimming. None of the track or swimming athletes advanced past the first round in their events, and no Maldivian has won a medal in any events. Sultan Saeed bore the Maldives' flag during the parade of nations of the opening ceremony.
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.
Raichin Antonov is a Bulgarian former swimmer, who specialized in sprint freestyle events. He is a multiple-time Bulgarian record holder and champion in the 50 and 100 m freestyle. He is also a former member of the swimming team for the Missouri State Bears under head coach Jack Steck, and a business graduate at the Missouri State University in Springfield, Missouri.
Arwut Chinnapasaen is a Thai former swimmer, who specialized in sprint freestyle events. He claimed two gold medals in the 50 m freestyle at the Southeast Asian Games, before losing out to Daniel Coakley of the Philippines in 2007.
Lee Chung-Hee is a South Korean former swimmer, who specialized in sprint freestyle events. He is a sixth-place finalist in the 50 m freestyle, when his nation South Korea hosted the 2002 Asian Games in Busan.
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.
Wang Shao-an is a Taiwanese former swimmer, who specialized in sprint freestyle events. He is a single-time Olympian, and a sixth-place finalist in the 100 m freestyle at the 2010 Asian Games in Guangzhou, China. He also competed in two previous Asian Games, but finished outside the top 8.
Rodrigo Eduardo Díaz Alarcón is a retired Guatemalan swimmer, who specialized in sprint freestyle events. Diaz qualified for the men's 50 m freestyle at the 2004 Summer Olympics in Athens, by achieving a FINA B-standard of 23.60 from the Central American and Mexican Championships in Panama City, Panama. He challenged seven other swimmers in heat four, including two-time Olympian Gregory Arkhurst of Côte d'Ivoire. He raced to third place by 0.11 of a second behind winner José Mafio of Uruguay, outside his entry time of 23.69. Diaz failed to advance into the semifinals, as he placed fifty-third out of 86 swimmers in the preliminaries.
Abed Rahman Kaaki is a Lebanese former swimmer, who specialized in sprint freestyle events. He represented Lebanon at the 2004 Summer Olympics, and also, held three records for the Connecticut Huskies swimming and diving team at the University of Connecticut, while studying in the United States.
Cole Shade Sule is a Cameroonian former swimmer, who specialized in sprint freestyle events. Sule qualified for the men's 50 m freestyle at the 2004 Summer Olympics in Athens, by receiving a Universality place from FINA, in an entry time of 25.96. He challenged seven other swimmers in heat three, including 16-year-old Chris Hackel of Mauritius. He raced to second place by less than 0.17 of a second behind winner Hackel in 26.16. Sule failed to advance into the semifinals, as he placed sixty-fourth out of 86 swimmers in the preliminaries.
Kreshnik Gjata is an Albanian former swimmer, who specialized in sprint freestyle events. Gjata qualified for the men's 50 m freestyle at the 2004 Summer Olympics in Athens, by receiving a Universality place from FINA, in an entry time of 26.64. He challenged seven other swimmers in heat three, including 16-year-old Chris Hackel of Mauritius. He posted a lifetime best of 26.61 to earn a fourth spot by a 1.28-second margin behind winner Hackel. Gjata failed to advance into the semifinals, as he shared a sixty-fifth place tie with Kyrgyzstan's Semen Danilov in the prelims.
Hem Kiry is a Cambodian former swimmer, who specialized in sprint freestyle events. He is a two-time Olympian, and served twice as Cambodia's flag bearer in the opening ceremony. He also held a Cambodian record of 26.48 in the 50 m freestyle from the Southeast Asian Games. Hem is currently working as a swimming coach for the Cambodia national team.
Khaled Ghezzawi is a Libyan swimmer, who specialized in sprint freestyle events. Ghezzawi qualified for the men's 50 m freestyle at the 2004 Summer Olympics in Athens, by receiving a Universality place from FINA, in an entry time of 27.00. He challenged seven other swimmers in heat three, including 16-year-old Chris Hackel of Mauritius. He raced to sixth place in 27.55, just 0.55 of a second off his entry time. Ghezzawi failed to advance into the semifinals, as he placed seventy-first overall out of 86 swimmers in the preliminaries.
Hassan Mubah is a Maldivian former swimmer, who specialized in sprint freestyle events. He is a two-time Olympian, and holds numerous Maldivian records in the 50 and 100 m freestyle.
Anderson Bonabart is a Micronesian former swimmer, who specialized in sprint freestyle events. Bonabart qualified for the men's 50 m freestyle at the 2004 Summer Olympics in Athens, by receiving a Universality place from FINA in an entry time of 28.07. He set a Micronesian record of 26.75 to lead the second heat against seven other swimmers, including 15-year-old Malique Williams of Antigua and Barbuda. Bonabart failed to advance into the semifinals, as he placed sixty-eighth overall out of 86 swimmers in the prelims.
Hojamamed Hojamamedov is a Turkmen swimmer, who specialized in sprint freestyle events. Hojamamedov qualified for the men's 50 m freestyle at the 2004 Summer Olympics in Athens, by receiving a Universality place from FINA in an entry time of 29.07. He challenged seven other swimmers in heat two, including 15-year-old Malique Williams of Antigua and Barbuda. He blasted a Turkmen record of 27.68 to earn a second spot by less than 0.07 of a second behind winner Anderson Bonabart of Micronesia. Hojamamedov failed to advance into the semifinals, as he placed seventy-second overall out of 86 swimmers in the preliminaries.
Bounthanom Vongphachanh is a Laotian former swimmer, who specialized in sprint freestyle events. Vongphachanh qualified for the men's 50 m freestyle at the 2004 Summer Olympics in Athens, by receiving a Universality place from FINA in an entry time of 28.45. He challenged seven other swimmers in heat two, including 15-year-old Malique Williams of Antigua and Barbuda. He posted a lifetime best of 28.17 to earn a third spot by a 1.42-second margin behind winner Anderson Bonabart of Micronesia. Vongphachanh failed to advance into the semifinals, as he placed seventy-seventh overall out of 86 swimmers in the preliminaries.
Mamadou Ouedraogo is a Burkinabé former swimmer, who specialized in sprint freestyle events. At the 2004 Summer Olympics in Athens, Ouedraogo was elected by the Burkinabé National Olympic and Sports Committee to carry the nation's flag in the opening ceremony. He qualified for the men's 50 m freestyle, as a 37-year-old, by receiving a Universality place from FINA in an entry time of 29.08. He challenged seven other swimmers in heat two, including 15-year-old Malique Williams of Antigua and Barbuda. Ouedraogo raced to sixth place in 30.36, more than two seconds off his entry time. Ouedraogo failed to advance into the semifinals, as he placed eighty-first overall out of 86 swimmers in the preliminaries.
Malique Williams is an Antiguan swimmer, who specialized in sprint freestyle events. Williams qualified for the men's 50 m freestyle, as a 15-year-old, at the 2004 Summer Olympics in Athens. He received a Universality place from FINA in an entry time of 34.04. He challenged seven other swimmers in heat two, including 37-year-old Mamadou Ouedraogo of Burkina Faso. He posted a lifetime best of 32.86 to secure seventh spot over Malawi's Yona Walesi by a 1.15-second margin. Williams failed to advance into the semifinals, as he placed eighty-second overall out of 86 swimmers in the preliminaries.
Donnie Defreitas is a former swimmer from Saint Vincent and the Grenadines, who specialized in sprint freestyle events. Defreitas qualified for the men's 50 m freestyle at the 2004 Summer Olympics in Athens, without having an entry time. He challenged five other swimmers in heat one, including 16-year-old Emile Rony Bakale of Congo. He posted a lifetime best of 27.72 to earn a fourth spot by a 2.65-second margin behind winner Bakale. Defreitas failed to advance into the semifinals, as he placed seventy-fourth overall out of 86 swimmers in the preliminaries.
Uganda 
