Cuba competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's seventeenth appearance in the Olympics, except for some editions. Cuban athletes did not attend in two Olympic Games, where they joined the Soviet and North Korean boycott. Cuban Olympic Committee sent the nation's smallest delegation to the Games since 1972. A total of 151 athletes, 97 men and 54 women, competed in 18 sports.
The Democratic Republic of the Congo competed in the 2008 Summer Olympics which were held in Beijing, People's Republic of China from August 8 to August 24, 2008. The country's delegation consisted of 29 people, including coaches and sports officials. Athletes from the DRC competed in athletics, judo, boxing and swimming.
The Dominican Republic competed at the 2012 Summer Olympics in London, United Kingdom, from 27 July to 12 August 2012. This was the nation's thirteenth consecutive appearance at the Olympics.
Mongolia competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's twelfth appearance at the Olympics, except the 1984 Summer Olympics in Los Angeles, because of its partial support to the Soviet boycott.
Ecuador competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's twelfth consecutive appearance at the Olympics. It had first competed at the 1924 Summer Olympics in Paris.
Benin 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, except the 1976 Summer Olympics in Montreal because of the African boycott.
Zambia competed at the 2012 Summer Olympics in London, held from 27 July to 12 August 2012. The country's participation at London marked its twelfth appearance in the Summer Olympics since its début at the 1964 Summer Olympics. The delegation consisted of seven competitors; three track and field athletes Gerald Phiri, Prince Mumba and Chauzje Choosha, one each in Boxing and Judo and two swimmers, Zane Jordan and Jade Ashleigh Howard. Phiri, Mumba, Choombe and Munyonga had qualified by meeting the standards in their respective sports, and Choosha, Jordan and Howard qualified by wildcard places. Mumba was the national flag bearer at the opening and closing ceremonies.
Mozambique competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's ninth consecutive appearance at the Olympics. In the weeks before the Games, Mozambique athletes trained at Comberton Village College in Cambridge.
The African island country of Seychelles competed at the 2012 Summer Olympics in London, United Kingdom, held from 27 July to 12 August 2012. This was the nation's eighth appearance at the Olympics, except the 1988 Summer Olympics in Seoul because of its partial support to the North Korean boycott.
Dominican Republic competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's fourteenth consecutive appearance at the Summer Olympics.
Mauritius competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's ninth consecutive appearance at the Summer Olympics.
Zambia competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's thirteenth appearance at the Summer Olympics, although it marked its official debut in 1964 under the name Northern Rhodesia. Zambia missed the 1976 Summer Olympics in Montreal, because of its partial support to the African boycott.
Tajikistan competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's sixth consecutive appearance at the Summer Olympics in the post-Soviet era.
Kyrgyzstan competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's sixth consecutive appearance at the Olympics in the post-Soviet era.
Congo, officially Republic of the Congo, competed at the 2016 Summer Olympics in Rio de Janeiro, from August 5 to 21, 2016. This was the nation's twelfth appearance at the Summer Olympics, since its debut in 1964. Congolese athletes did not attend the 1968 Summer Olympics in Mexico City, and the 1976 Summer Olympics in Montreal because of the African boycott.
Seychelles competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's eighth appearance at the Summer Olympics, with the exception of the 1988 Summer Olympics in Seoul because of its partial support to the North Korean boycott.
Ghana competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's fourteenth appearance at the Summer Olympics, having taken part in all but three editions since its debut at the 1952 Summer Olympics. Ghana did not attend the 1976 Olympics because of the African boycott and did not attend the 1980 Olympics because of the United States boycott.
The Democratic Republic of the Congo competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's tenth appearance at the Summer Olympics since its debut in 1968, although it had previously competed in four editions under the name Zaire.
Laos, officially the Lao People's Democratic Republic, competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's ninth appearance at the Summer Olympics, having attended all games since 1980 with the exception of the 1984 Summer Olympics in Los Angeles, because of the Soviet boycott.
The Democratic Republic of the Congo 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 eleventh consecutive appearance at the Summer Olympics, although it had previously competed in four editions under the name Zaire.
