Sierra Leone competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's eighth appearance at the Summer Olympics since its debut in the 1968 Summer Olympics. The Sierra Leone delegation included two track and field athletes; Lamin Tucker and Hawanatu Bangura, both of whom were sprinters that were selected via winning an event in Freetown, as the nation had no athletes that met the "A" or "B" standards in any event. Bangura was selected as flag bearer for the opening ceremony. Neither of the two athletes progressed beyond the heats.
Samoa competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004.
Lisa Vasa Misipeka is an American Samoan athlete who specialises in the hammer throw. She was the first woman to represent American Samoa at the Olympics.
American Samoa sent a delegation to compete at the 1994 Winter Olympics in Lillehammer, Norway from 12–27 February 1994. This was the territory's first, and as of the conclusion of the 2018 Winter Olympics, only Winter Olympics they have competed in. The delegation consisted of two athletes, Faauuga Muagututia and Brad Kiltz, who competed in the two-man bobsleigh event where they finished 39th.
Samoa first participated at the Olympic Games in 1984, and has sent athletes to compete in every Summer Olympic Games since then. The nation has never participated in the Winter Olympic Games.
American Samoa participated in the 2010 Summer Youth Olympics.
Samoa competed at the 2010 Summer Youth Olympics, the inaugural Youth Olympic Games, held in Singapore from 14 August to 26 August 2010.
Samoa participated in the 2012 Summer Paralympics in London, United Kingdom, from August 29 to September 9.
American Samoa competed at the 2012 Summer Olympics in London, United Kingdom from July 27 to August 12, 2012. This nation marked its seventh appearance at the Olympics. Five athletes from American Samoa were selected to the Games; all of them were given under Universality slots and tripartite invitation, without being qualified. Freestyle swimmer Ching Maou Wei became the nation's first male flag bearer at the opening ceremony since 1996. Among the sports played by the athletes, American Samoa also marked its Olympic return in wrestling after 16 years. American Samoa, however, has yet to win its first ever Olympic medal.
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.
Ching Maou Wei is an American Samoan professional swimmer. He qualified for the 2012 Summer Olympics in London, despite the absence of a professional swimming pool in American Samoa. Radio Australia called Maou Wei's qualification as one of the "most unlikely of success stories" of the 2012 Summer Olympics.
Silulu A'etonu is an American Samoan judoka, who played for the half-middleweight category. A'etonu represented American Samoa at the 2008 Summer Olympics in Beijing, where she competed for the women's half-middleweight class (63 kg). She lost the first preliminary match to Germany's Anna von Harnier, who successfully scored an ippon and a kuchiki taoshi, at eight seconds. A'etonu was also the nation's flag bearer at the opening ceremony.
During the Parade of Nations section of the 1994 Winter Olympics opening ceremony, athletes from each country participating in the Olympics paraded in the arena, preceded by name board bearers with a couple between them, and also the country flag. The flag was borne by a sportsperson from that country chosen either by the National Olympic Committee or by the athletes themselves to represent their country. The Parade of Nations was organized according to the Bokmål Norwegian alphabet. As usual, Greece leads the parade, followed by American Samoa.Due logistical troubles, Mongolia did not march in the parade, but still compete in the Games. The announcers welcomed the country in their respective national language, English, and lastly French.
Uati Maposua is a Samoan weightlifter. Maposua qualified for the Samoan squad in the men's middleweight class (77 kg) at the 2004 Summer Olympics in Athens by receiving a continental berth from the Oceanian Weightlifting Championships, and was later appointed as the Samoan flag bearer by the National Olympic Committee in the opening ceremony. He successfully lifted 125 kg in the single-motion snatch, and hoisted 155 kg in the two-part, shoulder-to-overhead clean and jerk to deliver a twenty-first-place finish in a field of twenty-five weightlifters with a total of 280 kg. Maposua's official results were later upgraded to twentieth position when Russian weightlifter Oleg Perepetchenov has been stripped off his bronze medal by the International Olympic Committee, after he was tested positive for anabolic steroids.
American Samoa competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's eighth consecutive appearance at the Summer Olympics.
Nathan Ikon Crumpton is an Olympic athlete who has competed in skeleton (sledding) for the United States of America and American Samoa, and in athletics for American Samoa.
American Samoa competed at the 2022 Winter Olympics in Beijing, China, from 4 to 20 February 2022. The last time it competed at the Winter Olympics was in 1994, which also marked its debut.
