Algeria competed at the 2004 Summer Olympics in Athens, Greece from 13 to 29 August 2004. It first competed in the Olympics in 1964, and entered the 2004 Athens Games having won a total of twelve medals — including one gold, one silver, and three bronze medals at the 2000 Summer Olympics. These medals were in athletics and boxing. 61 competitors, 46 men and 15 women, took part in 57 events in 10 sports.
Belgium competed at the 2004 Summer Olympics in Athens, Greece. 50 competitors, 31 men and 19 women, took part in 41 events in 14 sports.
Austria competed at the 2004 Summer Olympics in Athens, Greece from 13 to 29 August 2004. 74 competitors, 54 men and 20 women, took part in 56 events in 18 sports.
Great Britain, represented by the British Olympic Association (BOA), competed at the 2000 Summer Olympics in Sydney, Australia. British athletes have competed in every Summer Olympic Games. 310 competitors, 181 men and 129 women, took part in 179 events in 23 sports. These were the first Summer Olympics in which the team of selected athletes was officially known as Team GB in a highly successful attempt to unify all the competing athletes across all the sports and events and boost team morale. Going into the games following their exceptionally poor performance in Atlanta widespread expectations of the team were low.
Algeria competed at the 2000 Summer Olympics in Sydney, Australia. 47 competitors, 37 men and 10 women, took part in 42 events across 10 sports.
The Czech Republic competed at the 1996 Summer Olympics in Atlanta, United States. It was the first Summer Games since the dissolution of Czechoslovakia, and so the Czech Republic and Slovakia competed as independent teams. 115 competitors, 76 men and 39 women, took part in 110 events in 17 sports.
Estonia competed at the 2008 Summer Olympics in Beijing, People's Republic of China. This is a list of the results of all Estonian athletes who qualified for the Olympics and were nominated by Estonian Olympic Committee. Estonia was represented in the 2008 Beijing Olympic Games by 47 athletes in total of 13 different sporting events. The Estonian delegation, the largest in the nation's Olympic history, marched into the Beijing National Olympic stadium as the 160th nation, before Haiti and after Ireland delegations during the opening ceremony.
Hungary competed at the 2008 Summer Olympics in Beijing, China. The country sent 131 individual competitors plus the men's and women's water polo teams and the women's handball team for a total of 171 athletes taking part in the 2008 Summer Olympics. Hungary's gold medal count of 3 was the lowest in the nation's Summer Olympic history since the 1924 Paris Summer Olympics. Its total medal count of 10 was the lowest since the 1928 Summer Olympics in Amsterdam.
Uzbekistan competed in the 2008 Summer Olympics held in Beijing, People's Republic of China from August 8 to August 24, 2008, with a team of 58 athletes.
Slovenia, represented by the Slovenian Olympic Committee, sent a team with 62 athletes to compete in 11 sports at the 2008 Summer Olympics in Beijing, People's Republic of China. The flag on the opening ceremony was held by Slovenian judoka Urška Žolnir, who was bronze in 2004 Olympics Judo Competition.
Serbia competed at the 2012 Summer Olympics in London. This was the nation's third appearance at the Summer Olympics.
Chile competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This nation has competed at every Olympic Games, except the 1932 Summer Olympics in Los Angeles, and the 1980 Summer Olympics in Moscow because of the United States boycott.
El Salvador competed at the 2012 Summer Olympics in London, United Kingdom, from 27 July to 12 August 2012. This was the nation's tenth appearance at the Olympics.
Libya 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, because of the COVID-19 pandemic. It was the nation's twelfth appearance at the Summer Olympics since its debut at the 1964 Summer Olympics in Tokyo; seven of them were represented by the Libyan athletes under the name Libyan Arab Jamahiriya.
Sudan competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place during the summer of 2020, the Games were rescheduled for 23 July to 8 August 2021, due to the COVID-19 pandemic. This was the nation's twelfth appearance at the Summer Olympics.
Zimbabwe competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's eleventh consecutive appearance at the Summer Olympics as an independent nation under the name Zimbabwe, after appearing as Southern Rhodesia and Rhodesia in the colonial era, except for 1932, 1936, 1948, 1952, 1956, 1968, due to the Mexican government's interpretation of regulations on passports, 1972, as well as the nation's withdrawal, 1976, as the nation joined the African boycott, and the nation's independence in 1979, and it has been participated in every Olympics since 1980.
Uganda competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Since the nation's official debut in 1956, Ugandan athletes have appeared in every edition of the Summer Olympic Games, except for Montreal 1976 as part of the Congolese-led boycott.
Kuwait competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's fourteenth appearance at the Summer Olympics, although it competed under the Independent Olympic Athletes at the previous Games in 2016, resulting from the country's suspension by the International Olympic Committee for government interference.
Bermuda competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Since the nation's official debut in 1936, Bermudian athletes have appeared in every edition of the Summer Olympic Games, but did not attend the 1980 Summer Olympics in Moscow because of the nation's support for the US-led boycott.
Togo competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Since the nation made its debut in 1972, Togolese athletes participated in every edition of the Summer Olympic Games, except for two occasions, the 1976 Summer Olympics in Montreal, and the 1980 Summer Olympics in Moscow because of the African and the US-led boycotts, respectively.
South Sudan (2016–)
