São Tomé and Príncipe competed at the 2004 Summer Olympics in Athens, Greece, which was held from 13 to 29 August 2004. The country's participation at Athens marked its third appearance in the Summer Olympics since its debut in the 1996 Summer Olympics.
Zimbabwe competed at the 2000 Summer Olympics in Sydney, Australia.
Mauritius competed at the 2000 Summer Olympics in Sydney, Australia.
Cyprus competed at the 2000 Summer Olympics in Sydney, Australia.
Vietnam competed at the 2000 Summer Olympics in Sydney, Australia. Vietnam was represented by seven athletes in four sports, and won their first Olympic medal.
Eritrea competed in the Olympic Games for the first time at the 2000 Summer Olympics in Sydney, Australia.
Ethiopia competed at the 2000 Summer Olympics in Sydney, Australia. 26 athletes from Ethiopia participated. These Games were the most successful for Ethiopia, as the country claimed four gold medals and eight overall.
Guinea competed at the 2000 Summer Olympics in Sydney, Australia.
Iraq competed at the 2000 Summer Olympics in Sydney, Australia for its tenth appearance, with four athletes representing Iraq in two sports.
Kenya competed at the 2000 Summer Olympics in Sydney, Australia.
Madagascar competed at the 2000 Summer Olympics in Sydney, Australia.
Mali competed at the 2000 Summer Olympics in Sydney, Australia.
Palau competed in the Olympic Games for the first time at the 2000 Summer Olympics in Sydney, Australia.
Rwanda competed at the 2000 Summer Olympics in Sydney, Australia.
Chad competed at the 2000 Summer Olympics in Sydney, Australia.
Ghana competed at the 2000 Summer Olympics in Sydney, Australia.
Liberia competed at the 2000 Summer Olympics in Sydney, Australia.
The Democratic Republic of the Congo competed at the 2000 Summer Olympics in Sydney, Australia. The games marked the country's first appearance under its current moniker; in 1968, it was represented as Congo-Kinshasa, and from 1984 to 1996, it was represented as Zaire.
The African island nation of São Tomé and Príncipe competed at the 2012 Summer Olympics in London, held from 27 July to 12 August 2012. This was the nation's fifth appearance at the Olympics since its debut in 1996. Two track and field athletes, Christopher Lima da Costa and Lecabela Quaresma were selected to the team by wildcard places, without having qualified at any sporting event. Quaresma was selected as flag bearer for the opening and closing ceremonies. Neither of the two athletes progressed beyond the first round of their respective events.
Arlindo Leocadio Pinheiro he is a São Tomé and Principe athlete, who competed at the 2000 Summer Olympics in the Men's 110m hurdles he finished 6th in his heat and failed to advance. He also competed at the 1999 World Championships in Athletics and the 2003 World Championships in Athletics.
