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.
Djibouti took part in the 1996 Summer Olympics, which were held in Atlanta, United States from 19 July to 4 August. The country's participation marked its fourth appearance in the Summer Olympics since its debut at the 1984 Summer Games in Los Angeles, United States. The delegation from Djibouti included five athletes, three in athletics and two in sailing. The three athletes for athletics were Ali Ibrahim, Omar Moussa, and Hussein Ahmed Salah while Robleh Ali Adou and Mohamed Youssef represented the country for sailing.
Djibouti took part in the 1992 Summer Olympics, which were held in Barcelona, Spain from 25 July to 9 August. The country's participation marked its fourth appearance in the Summer Olympics since its debut at the 1984 Summer Games in Los Angeles, United States. The delegation from Djibouti included eight athletes, five in athletics, two in judo and one in sailing. Houssein Djama, Moussa Souleiman, Omar Daher Gadid, Ahmed Salah, and Talal Omar Abdillahi represented the nation in athletics, while Youssef Omar Isahak, Alaoui Mohamed Taher represented the nation in judo. Robleh Ali Adou represented Djibouti in sailing.
Djibouti took part in the 1988 Summer Olympics which were held in Seoul, Korea from September 17 to October 2. The country's participation marked its second appearance in the Summer Olympics since its debut at the 1984 Summer games in Los Angeles, United States. The delegation from Djibouti included six athletes, five in athletics and one in sailing. The five athletes for athletics were Hoche Yaya Aden, Ismael Hassan, Talal Omar Abdillahi, Hussein Ahmed Salah, and Omar Moussa while Robleh Ali Adou represented the nation in sailing. Ahmed Salah won the nation's first Olympic medal, which is a bronze at the Men's Marathon event.
Djibouti took part in the 1984 Summer Olympics, which were held in Los Angeles, United States from July 28 to August 12. The 1984 Summer Olympics were Djibouti's first Olympic appearance. The delegation included three marathon athletes, Djama Robleh, Ahmed Salah, and Omar Abdillahi Charmarke, none of whom won a medal.
Omar Ajete Iglesias is a former baseball player, who starred for the Cuban National Series' Pinar del Río Vegueros and the Cuban national team.
Djibouti has participated in eight Summer Olympic Games as of the completion of the 2016 Summer Olympics in Rio de Janeiro. They have never competed in the Winter Olympic Games. Djibouti debuted at the 1984 Summer Olympics in Los Angeles, United States of America with three athletes, but did not take home a medal. The highest number of Djiboutian athletes participating in a summer Games is eight in the 1992 games in Barcelona, Spain. Only one Djiboutian athlete has ever won a medal at the Olympics, marathon runner Hussein Ahmed Salah, who won a bronze medal in the 1988 marathon.
Somalia first participated at the Olympic Games at the 1972 Summer Games in Munich, West Germany; the Somali Olympic Committee being recognised by the International Olympic Committee shortly prior. The nation has sent athletes to compete in most Summer Olympic Games since then, boycotting in 1976 due to the inclusion of New Zealand, and in 1980 when it joined with the American-led boycott. It also did not compete in 1992 due to the ongoing effects of a famine. Somalia entered their largest contingent of athletes at the 1984 Summer Olympics, a total of seven.
Somalia sent a delegation to compete at the 2008 Summer Olympics in Beijing, China. The country's participation at Beijing marked its seventh in the Summer Olympics since its debut in 1972 Games. The delegation included two track and field athletes: sprinter Samiya Yuusf Omar and long-distance runner Abdinasir Said Ibrahim. Neither athlete progressed past the first round of their respective competitions. Omar's story, having trained in Mogadishu during the Somali Civil War, was covered by the media at the time, and later featured in a graphic novel following her death.
Benin took part in the 2008 Summer Olympics, which were held in Beijing, China from 8 to 24 August 2008. The country's participation at Beijing marked its eighth consecutive appearance in the summer Olympics since its debut in 1972, and its ninth Olympic appearance ever. The Benin delegation included five athletes in 2008, participating in three sports: athletics, swimming and taekwondo. Fabienne Feraez, a sprinter, was selected as the flag bearer for the opening ceremony. None of the Benin athletes progressed further than the heat round.
Omar Andrés Pinzón García is a competitive swimmer who represented Colombia at the 2004 Olympics in Athens, Greece and 2008 Olympics in Beijing, China. Pinzón attended college in the United States, where he swam for the University of Florida.
Omar Ahmed Abdelkader is an amateur boxer from Kenya, who is also known as Omar Ahmed, Ahmed Abdelkader, or Ahmed Rajab Omari. He is best known for winning the gold medal in the men's heavyweight division at the 1995 All-Africa Games in Harare, Zimbabwe.
Omar Dia is a former Senegalese basketball player. Dia competed for Senegal at the 1980 Summer Olympics, where he scored 108 points, grabbed 32 rebounds and had 22 assists in 6 games, including a 27 points, 12 rebounds and 4 assists in a loss to Czechoslovakia.
Omar Mena Abreu is a retired male sprinter from Cuba. He claimed a total number of two medals at the 1995 Pan American Games in Mar del Plata, Argentina. Meña set his personal best in the men's 400 metres (46.19) on June 10, 1999 in Havana, Cuba.
Omar Monza was an Argentine basketball player who competed in the 1952 Summer Olympics.
Omar Longart is a Venezuelan sprinter.
Mohamed Omar El-Zeer is an Egyptian footballer. He competed in the men's tournament at the 1984 Summer Olympics.
Omar Cañas was a Colombian footballer. He competed in the men's tournament at the 1992 Summer Olympics.
Omar Tebbaka is a French boxer. He competed in the men's middleweight event at the 1952 Summer Olympics.
