Kiribati competed in the Summer Olympic Games for the first time at the 2004 Summer Olympics in Athens, Greece, from August 13–29, 2004. The country sent three representatives to the Games: two in athletics and one in weightlifting. As of 2012, Meamea Thomas has the best finish of any I-Kiribati athlete in Olympic history. Kiribati did not win medals at these Games.
Mauritania competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. The country's participation at Athens marked its sixth appearance in the Summer Olympics since its debut in the 1984 Summer Olympics. The delegation included two track and field athletes, Youba Hmeida and Aminata Kamissoko, who were both selected by wildcards after both failed to meet either the "A" or "B" qualifying standards. Hmeida was selected as the flag bearer for the opening ceremony. Neither of the Mauritanians progressed beyond the heats.
Vanuatu competed at the 2004 Summer Olympics in Athens, Greece, which was held from 13 to 29 August 2004. The nation's appearance at the 2004 Athens Games marked its fifth appearance at the Summer Olympics since its debut at the 1988 Summer Olympics.
Fiji sent a team to compete in the 2008 Summer Olympics in Beijing, China. The country's flagbearer during the Games' opening ceremony was female sprinter Makelesi Bulikiobo. Fiji was represented by a total of six athletes.
Nauru competed at the 2008 Summer Olympics, that were celebrated in Beijing, China, from August 8 to August 24, 2008. Nauru was represented by the Nauru Olympic Committee, and was the only nation out of 204 participating nations and territories that sent only a single athlete, and was one of 117 that won no medals at the Games. The sole athlete to represent the nation was Itte Detenamo, who participated in the weightlifting, and was the flag bearer in both the opening and closing ceremonies. This was the same number of athletes as at the 1996 Olympics, when Marcus Stephen represented the country in the same sport, but was a decrease from the nation's last appearance at the Games when three athletes were sent to Athens. Nauru earned a berth for the weightlifting event in the Oceania and South Pacific Olympic Weightlifting Championships in 2008 and a chance to send participants in swimming and athletics events, but chose to send only a weightlifter. Itte Detenamo competed in the Group B of heavyweight class, fifteenth and last event of the weightlifting. He did not earn a medal, but finished with a personal best.
Swaziland sent a delegation to compete at the 2008 Summer Olympics held in Beijing, People's Republic of China from August 8–24, 2008. This was the Kingdom's eighth appearance at a Summer Olympic Games. The Swazi delegation to Beijing consisted of four competitors, two track and field athletes; Isaiah Msibi and Temalangeni Dlamini; and two swimmers; Luke Hall and Senele Dlamini. None of the four advanced beyond the first round of their respective events.
Kaitinano Mwemweata is an I-Kiribati athlete. She was the first person to compete for Kiribati at the Olympic Games, when she represented her country at the 100 metre sprint in Athens in 2004.
Saint Vincent and the Grenadines sent a delegation to compete at the 2008 Summer Olympics in Beijing, China. The year's team included two athletes engaged in track and field events, and was accompanied by the team coach, manager, and chaperone. Saint Vincent and the Grenadines' appearance in Beijing marked its sixth consecutive Olympic appearance since its 1988 debut in Seoul, South Korea, and its smallest delegation to date. Alexander bore the flag of Saint Vincent and the Grenadines in the opening ceremony and neither athlete medaled in their events or advanced to later rounds.
Mauritania competed at the 2008 Summer Olympics which was held in Beijing, China. The country's participation at Beijing marked its seventh appearance in the Summer Olympics since its debut in the 1984 Summer Olympics. The delegation included two track and field athletes, Souleymane Ould Chebal and Bounkou Camara, who were both selected by wildcards after both failed to meet either the "A" or "B" qualifying standards. Chebal was selected as the flag bearer for the opening ceremony. Neither of the Mauritanians progressed beyond the heats.
David Katoatau is an I-Kiribati weightlifter who received international press attention due to dance routines he performed following his lifts at the 2016 Summer Olympics, in order to bring attention to the impact of climate change on Kiribati.
Rabangaki Nawai is a track and field sprint athlete who competes internationally for Kiribati.
Tuvalu participates in the Olympic Games in the Summer Olympics. It has yet to compete at the Winter Olympics.
The British Virgin Islands sent a delegation to compete at the 2012 Summer Olympics in London, United Kingdom, which took place between 27 July to 12 August 2012. The country's participation in London marked its eighth appearance at the Summer Olympics since its debut in the 1984 Summer Olympics. The British Virgin Islands delegation included two track and field athletes, 100 meter sprinters J'maal Alexander and Tahesia Harrigan-Scott. Alexander failed to progress through the heats whilst Harrigan-Scott was eliminated in her event's quarterfinals.
The Gambia competed 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 eighth appearance in the Summer Olympics since its début at the 1984 Summer Olympics. The delegation included two athletes, Suwaibou Sanneh and Saruba Colley, the former had qualified by setting a qualifying time that fell within the required standard and the latter entered via a wildcard place. Sanneh was selected as the flag bearer for both the opening and closing ceremonies. Sanneh became the first Gambian athlete to advance into the semi-finals of the men's 100 metres, while Colley was eliminated after the quarter-final stages of the Women's 100 metres.
The Oceanic island nation of Kiribati competed at the 2012 Summer Olympics in London, held from July 27 – August 12, 2012. This was the nation's third appearance at the Olympics.
Tuvalu competed 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 second appearance in the Summer Olympics since its debut at the 2008 Summer Olympics. The delegation consisted of three competitors: two short-distance runners, Tavevele Noa and Asenate Manoa, and one weightlifter, Tuau Lapua Lapua. All three qualified for the games through wildcard places because they did not meet the qualification standards. Lapua was the flag bearer for the opening ceremony while Manoa carried it at the closing ceremony. Noa and Manoa failed to advance beyond the preliminary rounds of their events although the latter established a new national record for the women's 100 metres, while Lapua placed 12th in the men's featherweight weightlifting competition.
Kiribati competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from August 5 to 21, 2016. This was the nation's fourth consecutive appearance at the Summer Olympics.
The Marshall Islands competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's third consecutive appearance at the Summer Olympics.
Nauru competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, due to the COVID-19 pandemic. The country's participation in Tokyo marked its seventh appearance at the Summer Olympics since its debut in 1996.
Kiribati competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, it was postponed to 23 July to 8 August 2021, due to the COVID-19 pandemic. The country's participation in Tokyo marked its fifth appearance at the Summer Olympics since its debut in 2004.
