Latvia competed at the 2012 Summer Olympics in London, United Kingdom from July 27 to August 12, 2012. This was the nation's tenth appearance at the Summer Olympics.
Bulgaria competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012. It was the nation's nineteenth appearance at the Summer Olympics, having missed the Olympics on three occasions, including the 1984 Summer Olympics in Los Angeles because of the Soviet boycott. Despite this being London's third Olympic Games, this was the first time a Bulgarian team appeared at a London Olympics. The Bulgarian Olympic Committee sent the nation's smallest delegation to the Games, tying the record with Helsinki in 1952, and with Tokyo in 1964. A total of 63 athletes, 36 men and 27 women, competed in 16 sports. Men's volleyball was the only team event in which Bulgaria was represented in these Olympic games. There was only a single competitor in badminton, sprint canoeing, fencing, and judo.
Ivory Coast competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012. This was the nation's thirteenth appearance at the Olympics.
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.
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.
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.
Burundi competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012. This was the nation's fifth appearance at the Olympics.
Djibouti competed at the 2012 Summer Olympics in London, from July 27 to August 12, 2012. This was the nation's seventh appearance at the Olympics.
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.
Kyrgyzstan competed at the 2012 Summer Olympics in London, United Kingdom from 27 July 2012 to 12 August 2012. This was the nation's fifth appearance at the Olympics in the post-Soviet era.
Cook Islands, represented by eight athletes, competed at the 2012 Summer Olympics in London from 27 July to 12 August 2012. This was the nation's seventh appearance at the Olympics.
Costa Rica competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's fifteenth appearance at the Summer Olympics, since its debut in 1936.
Myanmar competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's sixteenth appearance at the Olympics, although it had previous competed in most editions under the name Burma. Myanmar did not attend the 1976 Summer Olympics in Montreal for political reasons.
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.
Burkina Faso 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 participated since the 1972 Summer Olympics in Munich under the name Upper Volta.
Comoros 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.
Guinea competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's eleventh appearance at the Summer Olympics since its debut in 1968. Guinea failed to register any athletes at the 1972 Summer Olympics in Munich, and eventually joined the rest of the African nations to boycott the 1976 Summer Olympics in Montreal.
Malta competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's sixteenth appearance at the Summer Olympics, since its debut in 1928, although it failed to register any athletes in five other editions.
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.
Andorra competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's eleventh consecutive appearance at the Summer Olympics.
