Bahrain sent a delegation to compete at the 2000 Summer Olympics in Sydney, Australia, which were held from 15 September to 1 October 2000. This was the fifth consecutive Summer Olympics the Kingdom took part in. The delegation consisted of four athletes: sprinter Mariam Mohamed Hadi Al Hilli, middle-distance runner Mohamed Saleh Naji Haidara and short-distance swimmers Dawood Yosuf Mohamed Jassim and Fatema Hameed Gerashi. Al Hilli and Gerashi's inclusion in the Bahraini delegation was the first time in history a Gulf Arab nation had sent female athletes to the Olympic Games. All four did not progress beyond the initial heats of their respective competitions. Bahrain's best performance came from Haidara and Jassim who placed seventh in the heats of the men's 800 metres and the men's 100 metres freestyle. Gerashi was disqualified for a false start in the women's 50 metres freestyle and Al Hilli came eighth in her heat in the women's 100 metres.
Somalia sent a delegation to compete at the 2000 Summer Olympics in Sydney, Australia from 15 September to 1 October 2000. This was the African country's fifth appearance at a Summer Olympic Games, following their debut twenty-eight years earlier at the 1972 Summer Olympics. The delegation consisted of two athletics competitors: Ibrahim Mohamed Aden and Safia Abukar Hussein, the latter was Somalia's first female Olympic athlete. Neither of the two participants progressed beyond the first round of their respective competitions.
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.
Samia Yusuf Omar or Samiyo Omar was a sprinter from Somalia. She was one of two Somali athletes who competed for their nation at the 2008 Summer Olympics in Beijing, China. Omar had grown up in Mogadishu, and trained there during the Somali Civil War despite receiving harassment from local militia groups. Her story at the Olympics was covered by the media, and her performance was well received by the crowd.
Natasha Monique Hastings is an American 400 meter track and field sprinter.
Nataliya Olehivna Pohrebniak is a Russian-Ukrainian sprint athlete who specializes in the 100 metres. Pohrebniak was part of the Ukrainian women's 4 × 100 m that won gold during the 2010 European Athletics with 42.29 – the fastest time in the world that year. She changed her allegiance to Russia after 2016 and began competing in Russian national competitions in 2019.
Jazmin Roxy "Jazz" Carlin is a former British competitive swimmer, who previously represented Wales and the Great Britain swimming team. She competed primarily in endurance freestyle events, and was based at the University of Bath. She won gold for Wales at the 2014 Commonwealth Games, double gold for Great Britain in the 400 metres and 800 metres freestyle at both the 2014 European Championships and the 2015 European Championships before winning two silver medals for Great Britain in the same events behind Katie Ledecky at the 2016 Summer Olympics.
Dafne Schippers is a Dutch retired track and field athlete who competed in sprinting and the combined events. She holds the European record in the 200 metres with a time of 21.63 seconds, making her the sixth-fastest woman of all time at this distance. She also holds the Dutch records in the 100 metres and long jump, and shares the Dutch records in the 60 metres indoor and 4 × 100 metres relay.
Somalia participated at the 2012 Summer Olympics in London, United Kingdom, which took place from 27 July to 12 August 2012. The country's participation in London marked its ninth appearance in the Summer Olympics since its debut at the 1972 Summer Olympics. The delegation included one short-distance sprinter and one long-distance runner: Mohamed Hassan Mohamed and Zamzam Mohamed Farah. Both qualified for the games through wildcard places from the International Association of Athletics Federations. Farah was selected as the flag bearer for both the opening and closing ceremonies. Mohamed and Farah failed to advance beyond the heat stage of their respective events.
Emily Diamond is a British track and field athlete, who competes in the 200 metres and 400 metres. Diamond came to prominence in her breakout season of 2016 when, following her first win at the British Championships over the 400 metres distance, she collected a gold medal in the 4 x 400 metres relay at the 2016 European Athletics Championships as part of the Great Britain team, followed by a bronze in the same discipline at the 2016 Summer Olympics.
Michelle "Shelly" Jenneke is an Australian hurdler and model. She won a silver medal for the 100 m hurdles at the 2010 Summer Youth Olympics and the 100 m hurdles at the 2016 Australian Athletics Championships to qualify for the Rio Olympic Games. In 2012, she received worldwide media attention after her pre-race warm-up dance went viral on the internet and was featured in the 2013 Sports Illustrated Swimsuit Issue.
Zourah Ali also known as Souhra Ali Mohamed is a Djiboutian runner. She competed in the 2012 and 2020 Summer Olympics.
Lidiane Lopes is a Cape Verdean sprinter who specialises in the 100 metres and 200 metres. She is the current Cape Verdean record holder in the 100-metre sprint. Lopes has competed at both the 2012 and 2016 Summer Olympics. At both Olympics, she competed in the 100 metres. She has also competed in a World Championships, a World Junior Championships, a World Youth Championships, a Jeux de la Francophonie, a Lusophony Games, an African Games, and an Ibero-American Athletics Championships.
Gonezie Marie Josée Dominique Ta Lou-Smith is an Ivorian sprinter competing in the 100 metres and 200 m. She finished fourth in the 100 metres and 200 metres finals at the 2016 Olympic Games, missing out on a medal in the 100m by seven-thousandths of a second (0.007). She then won silver medals in the 100 metres and 200 metres at the 2017 World Championships, the latter in the national record time of 22.08 seconds. Her 100 metres best is 10.72 seconds (2022), thus making her the African record holder.
Djibouti competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. The nation's participation marked its eighth appearance at the Summer Olympics. Djibouti did not field any athletes at the 2004 Summer Olympics in Athens.
Sara Louise Treacy is an Irish runner who competes primarily in the 3000 metres steeplechase. She represented her country at the 2015 World Championships in Beijing without qualifying for the final. She also competed at the 2016 Summer Olympics.
Regine Tugade-Watson is a Guamanian sprinter. She competed in the women's 100 metres event at the 2015 World Championships in Athletics in Beijing, China, as well as the girl's 200 m event at the 2015 World Youth Championships in Cali, Colombia. She competed in the women's 100 m preliminary round of the 2016 Summer Olympics. Tugade finished third place in her heat but did not progress further. She also competed in her second World Championships in 2017, competing in the 200 m. She holds seven Guamanian national records in athletics. In July 2021 she was a flag bearer in the Parade of Nations at the Tokyo Olympics opening ceremony.
Michelle Finn is an Irish runner competing in the 3000 metres steeplechase. She represented Ireland in the 3,000 metres steeplechase at the 2016 Summer Olympics in Rio; she finished 11th in her heat. Previously she had also represented Ireland at the 2015 World Championships.
Penelope Oleksiak is a Canadian competitive swimmer. Her country's most decorated Olympian, Oleksiak rose to fame during the 2016 Summer Olympics, where she became the first Canadian to win four medals in the same Summer Games, and the country's youngest Olympic champion with her gold medal win in the 100 m freestyle. She was the first athlete born in the 2000s to claim an Olympic gold medal in an individual event. Her success led to her being awarded the 2016 Lou Marsh Trophy as Canada's top athlete, the Bobbie Rosenfeld Award as Canada's top female athlete for 2016, and a member of the Canadian Press team of the year. Five years later she won three additional medals at the 2020 Summer Olympics, breaking the national record for Olympic medals.
Somalia competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. The country's participation at Rio de Janeiro marked its ninth in the Summer Olympics since its debut in 1972. The delegation included two track and field athletes: sprinter Maryan Nuh Muse and long-distance runner Mohamed Daud Mohamed, who was the nation's flag bearer in the Parade of Nations. Neither athlete progressed past the first round of their respective competitions.
Djibouti 
