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.
India competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. The Indian Olympic Association sent a total of 73 athletes, 48 men, and 28 women, to compete in 14 sports. Men's field hockey was the only team-based sport in which India had its representation in these Olympic games. As a pleasant surprise, the shooting team came successful with a silver medal, the winner being Capt. Rajyavardhan Singh Rathore. He was the first Indian to win an individual silver medal.
Indonesia competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's twelfth appearance at the Olympics, excluding the 1964 Summer Olympics in Tokyo, and the 1980 Summer Olympics in Moscow because of the United States boycott. Krisna Bayu was originally the flag bearer, however the role was later done by Christian Hadinata because Bayu was suffering from flu at the eve of opening ceremony.
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.
Romania competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. Romanian athletes have competed at every Summer Olympic Games since its official debut in 1924, missing only two editions, including the 1948 Summer Olympics. The Romanian Olympic and Sports Committee sent the nation's smallest team to the Games since the 1988 Summer Olympics in Seoul. A total of 108 athletes, 50 men and 58 women, had competed in 16 different sports, most notably in artistic gymnastics and rowing. For the third time in Olympic history, Romania was again represented by more female than male athletes.
Norway competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's twenty-fourth appearance at the Summer Olympics, except for the 1904 Summer Olympics in St. Louis, and the 1980 Summer Olympics in Moscow, due to the country's support of the United States boycott. With the absence of women's football and handball teams, Norwegian Olympic and Paralympic Committee and Confederation of Sports sent the nation's smallest delegation to the Games since the 1968 Summer Olympics in Mexico City. A total of 53 athletes, 36 men and 17 women, competed only in 12 different sports. There was only a single competitor in badminton, swimming, taekwondo, weightlifting, and wrestling.
Peru 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 1952 Summer Olympics in Helsinki.
Slovakia competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's third consecutive appearance at the Summer Olympics since the post-Czechoslovak era. The Slovak Olympic Committee sent a total of 64 athletes to the Games, 48 men and 16 women, to compete in 11 sports. There was only a single competitor in artistic and trampoline gymnastics and sailing.
Uzbekistan competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's third consecutive appearance at the Olympics. The National Olympic Committee of the Republic of Uzbekistan sent a total of 70 athletes to the Games, 52 men and 18 women, to compete in 13 different sports, tying its delegation record with Sydney four years earlier. There was only a single competitor in road cycling, artistic and trampoline gymnastics, and table tennis.
India competed at the 2008 Summer Olympics in Beijing, People's Republic of China. India was represented by the Indian Olympic Association (IOA). A contingent of 57 athletes in 12 sports represented India, and had a support-staff of 42 officials.
Finland competed at the 2008 Summer Olympics in Beijing, People's Republic of China. The athletes were named in four selections: first took place on December 19, 2007, 2nd on April 16, 3rd on May 20 and 4th on July 21, 2008.
Mexico competed at the 2008 Summer Olympics in Beijing. The country sent 85 competitors and participated in 23 sports. Mexico's flag-bearer at the opening ceremony was diver Paola Espinosa. Mexican athletes won two gold medals at the games for the first time since the 1984 Olympics.
Colombia competed at the 2008 Summer Olympics. The country sent 68 athletes to compete in 15 sports, making this Colombia's largest ever delegation to the Olympics.
Kazakhstan competed in the 2008 Summer Olympics, held in Beijing, People's Republic of China from August 8 to August 24, 2008.
Uruguay sent a team of 12 athletes to compete in the 2008 Summer Olympics held in Beijing, People's Republic of China from August 8 to August 24, 2008.
Lithuania competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's eighth appearance at the Summer Olympics. The National Olympic Committee of Lithuania sent a total of 62 athletes to the Games, 39 men and 23 women, to compete in 14 sports. Men's basketball was the only team-based sport in which Lithuania had its representation in these Olympic games.
Estonia competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012. This was the nation's eleventh appearance at the Summer Olympics.
Vietnam competed at the 2012 Summer Olympics in London, from July 27 to August 12, 2012. This was the nation's eighth appearance at the Olympics, having missed the 1984 Summer Olympics in Los Angeles, because of the Soviet 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.
Azerbaijan competed at the 2012 Summer Olympics in London, United Kingdom, from 27 July to 12 August 2012. This was the nation's fifth consecutive appearance at the Olympics in the post-Soviet era. The National Olympic Committee of the Azerbaijani Republic sent the nation's largest delegation to the Games. A total of 53 athletes, 39 men and 14 women, competed in 15 sports. There was only a single competitor in road cycling, equestrian show jumping, fencing, and shooting. The Azerbaijani athletes also included their only defending champion, judoka Elnur Mammadli, who became the nation's flag bearer at the opening ceremony.
