Kenya competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's eleventh appearance at the Olympics, except the 1976 Summer Olympics in Montreal and the 1980 Summer Olympics in Moscow because of the African and United States boycott.
Malta competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's thirteenth appearance at the Olympics since its debut in 1928.
Bermuda competed at the 2004 Summer Olympics in Athens, Greece from 13 to 29 August 2004. This was the nation's fifteenth appearance at the Olympics, except the 1980 Summer Olympics in Moscow.
Cyprus competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012. This was the nation's ninth consecutive appearance at the Olympics.
Eritrea competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's fourth appearance at the Olympics.
Guatemala competed at the 2012 Summer Olympics in London from 27 July to 12 August 2012. This was the nation's thirteenth appearance at the Summer Olympics, having missed three Olympics after its debut at the 1952 Summer Olympics in Helsinki.
Romania competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This nation has competed at the Summer Olympic Games since its official debut in 1924, missing only two editions, including the 1948 Summer Olympics. Despite being London's third Olympic Games, this is the first time the Romanian team has competed in London. The Romanian Olympic and Sports Committee sent a total of 103 athletes to the Games, 54 men and 49 women, to compete in 14 sports.
Sudan competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's eleventh appearance at the Olympics, since its debut in 1960. Sudan, however, did not attend the 1976 Summer Olympics in Montreal and the 1980 Summer Olympics in Moscow because of the African and the United States boycott.
Kenya competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's thirteenth appearance at the Olympics, they did not participate in the 1976 Summer Olympics in Montreal and the 1980 Summer Olympics in Moscow because of the African and United States boycott.
Moldova competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's fifth consecutive appearance at the Summer Olympics in the post-Soviet era.
Peru competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's seventeenth appearance at the Olympics, having only missed the 1952 Summer Olympics in Helsinki.
Bosnia and Herzegovina competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012. This was the nation's sixth appearance at the Summer Olympics.
Botswana competed at the 2012 Summer Olympics in London, United Kingdom, from 27 July to 12 August 2012. This was the nation's ninth appearance at the Olympics.
Bahrain competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012. This nation marked its eighth appearance in the Summer Olympics. However, there were concerns about the nation's participation to the games due to its recent political uprising.
Tunisia competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's thirteenth appearance at the Olympics, having missed the 1980 Summer Olympics in Moscow because of its partial support for the United States boycott.
The United States Virgin Islands competed at the 2012 Summer Olympics in London, from July 27 to August 12, 2012. This was the nation's eleventh appearance at the Olympics, except the 1980 Summer Olympics in Moscow, because of the United States boycott.
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.
Guyana competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012. This was the nation's sixteenth appearance at the Olympics as an independent nation, although it had previously competed in five other games as British Guiana. Guyana did not compete in the 1976 Summer Olympics in Montreal because of its partial support to the African boycott.
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.
Costa Rica competed at the 2012 Summer Olympics in London from 27 July to 12 August 2012. This was the nation's fourteenth appearance at the Olympics, excluding four occasions from its national debut in 1936.
