Yemen sent a delegation to compete at the 2000 Summer Olympics in Sydney, Australia from 15 September to 1 October 2000. This was their third appearance at a Summer Olympic Games as a unified country. The Yemeni delegation consisted of two track and field athletes, Basheer Al-Khewani and Hana Ali Saleh. Neither advanced beyond the first round of their respective events.
The Maldives competed at the 2000 Summer Olympics in Sydney, Australia, from 15 September to 1 October 2000. The delegation's participation in the Sydney Olympics marked the Maldives' fourth appearance at the Summer Olympics since their debut at the 1988 Summer Olympics in Seoul, South Korea. Four athletes competed across two sports; Naseer Ismail and Shamha Ahmed in track and field, and Hassan Mubah and Fariha Fathimath in swimming. Neither advanced past the first round in their respective events, and no Maldivian has won a medal in any events. Naseer Ismail bore the Maldives' flag during the parade of nations of the opening ceremony.
Belize sent a delegation to compete at the 2000 Summer Olympics in Sydney, Australia from 15 September to 1 October 2000. This was Belize's eighth appearance at a Summer Olympic Games. The delegation sent by Belize consisted of two track and field competitors: Jayson Jones and Emma Wade. Neither advanced beyond the first round heats of their events.
Comoros sent a delegation to compete at the 2000 Summer Olympics in Sydney, Australia from 15 September to 1 October 2000. This was the Indian Ocean nation's second appearance at a Summer Olympic Games, following their debut four years earlier at the 1996 Atlanta Olympics. The delegation consisted of two track and field athletes: Hadhari Djaffar and Sandjema Batouli. Both raced in the 100 meters events, but neither advanced beyond the first round.
The Gambia sent a delegation to compete at the 2000 Summer Olympics in Sydney, Australia from 15 September to 1 October 2000. This was the African nation's fifth time competing at a Summer Olympic Games. The Gambian delegation consisted of two track and field athletes, Pa Mamadou Gai and Adama Njie. Neither advanced beyond the first round heats of their events.
The British Virgin Islands sent a delegation to compete at the 2000 Summer Olympics in Sydney, Australia from 15 September to 1 October 2000. This was the territory's fifth appearance at a Summer Olympic Games. The delegation consisted of a single track and field athlete, Keita Cline. He was eliminated during the first round of the men's 200 meters.
Mauritania sent a delegation to compete at the 2000 Summer Olympics in Sydney, Australia from 15 September to 1 October 2000. This was the African nation's fifth time competing at the Summer Olympic Games. The Mauritanian delegation consisted of two track and field athletes, Sidi Mohamed Ould Bidjel and Fatou Dieng. Neither advanced beyond the first round of their respective events.
Sierra Leone sent a delegation to compete at the 2000 Summer Olympics in Sydney, Australia from 15 September to 1 October 2000. This was the African nation's sixth time appearing at a Summer Olympic Games. The delegation consisted of three competitors, two track and field athletes; Alpha B. Kamara and Ekundayo Williams; and weightlifter Joseph Bellon. Neither of the track athletes advanced beyond the first round of their events, while Bellon finished 16th in the men's under 77 kg event.
The Solomon Islands sent a delegation to compete at the 2000 Summer Olympics in Sydney, Australia from 15 September to 1 October 2000. This was the nation's fifth appearance at a Summer Olympic Games. The Solomon Islands' delegation to Sydney consisted of two track and field athletes, Primo Higa and Jenny Keni. Higa competed in the men's steeplechase, and Keni in the women's 100 meters. but neither advanced beyond the first round of their event.
Tonga sent a delegation to compete at the 2000 Summer Olympics in Sydney, Australia from 15 September to 1 October 2000. Sydney was Tonga's fifth consecutive appearance at a Summer Olympic Games. The Tongan delegation to Sydney consisted of two track and field athletes; Toluta'u Koula and Ana Siulolo Liku; and weightlifter Tevita Kofe Ngalu. Neither of the track athletes advanced beyond the first round of their events, while Ngalu came 13th in the men's 105 kg category.
Djibouti took part in the 2000 Summer Olympics, which were held in Sydney, Australia from 15 September to 1 October. The country's participation at Sydney marked its fifth appearance in the Summer Olympics since its debut at the 1984 Summer Games in Los Angeles, United States. The delegation included two track and field athletes; Omar Daher Gadid in the men's marathon and Roda Ali Wais in the women's 800 metres. Gadid failed to finish the marathon, while Wais did not progress past the first round of her event.
Malawi sent a delegation to compete at the 1996 Summer Olympics in Atlanta, United States from 19 July to 4 August 1996. This was the African nation's fifth appearance at a Summer Olympic Games. The Malawian delegation consisted of two competitors in the sport of athletics; Henry Moyo failed to advance past the first round heats of the 5,000 meters, and John Mwathiwa finished 65th in the marathon.
Saint Kitts and Nevis first participated at the Olympic Games in 1996, and have competed in every Summer Olympic Games since then. The country has not competed at the Winter Olympic Games.
Djibouti first participated at the Olympic Games in 1984, and have competed in every Summer Olympic Games, apart from the 2004 edition, since then. They have never competed in the Winter Olympic Games.
Cape Verde competed at the 2008 Summer Olympics in Beijing, China. Their participation marked their fourth Olympic appearance. Two Cape Verdeans competed in the Olympic games: Nelson Cruz participated as a marathon runner, and Wania Monteiro participated in gymnastics. Another athlete, Lenira Santos, was selected to compete in athletics but was forced to pull out due to injury. Monteiro was selected as the flag bearer for both the opening and closing ceremonies. Neither of the Cape Verdeans progressed beyond the first round.
Burundi participated in the 2008 Summer Olympics, held in Beijing, China from 8 to 24 August 2008. It was Burundi's fourth appearance in the summer Olympics since its debut in 1996. The Burundi team included three athletes: runners Joachim Nshimirimana and Francine Niyonizigiye, as well as swimmer Elsie Uwamahoro. Niyonizigiye, a marathon runner, was flag bearer for the opening ceremony. None of the Burundi athletes progressed further than the qualifying round.
Cape Verde competed at the 2012 Summer Olympics which were held in London, United Kingdom from 27 July to 12 August 2012. The country's participation at London marked its fifth appearance in the Summer Olympics since its debut in 1996. The delegation included Ruben Sança, a long-distance runner; Lidiane Lopes, a sprinter; and Adysângela Moniz, a judoka. Moniz and Sança were also selected as the flag bearers for the opening and closing ceremonies respectively. Of the three Cape Verdean athletes, only Moniz progressed further than the first round.
António Carlos Pina Zeferino is a Cape Verdean athlete, specializing in long-distance running, marathon and half marathon.
Isménia do Frederico is a Cape Verdean sprinter. She was the first woman to represent Cape Verde at the Olympics.
São Tomé and Príncipe competed at the 2016 Summer Paralympics in Rio de Janeiro, Brazil from 7 to 18 September 2016. The country's participation in Rio marked its debut appearance in the quadrennial event, although it had competed in the Summer Olympics six times since the 1996 Games. The delegation consisted of a single short-distance runner Alex Anjos, who was chosen as São Tomé and Príncipe's flag bearer for the opening ceremony. Anjos was disqualified from the men's 100 metres (T47) for arriving late and failed to advance into the final of the men's 400 metres (T47) after failing to set a fast enough lap time.
