Greece was the host country for the 2004 Summer Olympics in Athens, from 13 to 29 August 2004. As the progenitor nation and in keeping with tradition, Greek athletes have competed at every Summer Olympics in the modern era, alongside Australia, Great Britain, and Switzerland. The Hellenic Olympic Committee sent a total of 426 athletes to the Games, 215 men and 211 women, and had achieved automatic qualification places in all sports, with the exception of men's and women's field hockey. It was also the nation's largest team ever in Summer Olympic history since the first modern Games were held in 1896.
Australia competed at the 2004 Summer Olympics in Athens, Greece from 13 to 29 August 2004. Australian athletes have competed in every Summer Olympic Games of the modern era. The Australian Olympic Committee sent a total of 470 athletes to the Games to compete in 29 sports.
Germany competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's fourth consecutive appearance at the Summer Olympics after its reunification in 1990. The German Olympic Sports Confederation sent the nation's second largest delegation to the Games since its reunification. A total of 441 athletes, 250 men and 191 women, competed in 27 sports, and were nominated by DOSB at four occasions.
Spain competed at the 2004 Summer Olympics in Athens, Greece, from August 13 to 29, 2004. This nation has competed in every Summer Olympic Games since its official debut in 1920. Spain, however, boycotted two editions, the 1936 Summer Olympics in Nazi Germany, and the 1956 Summer Olympics in Melbourne, as a protest to the Soviet invasion of Hungary. The Spanish Olympic Committee sent the nation's third largest delegation in history to the Games. A total of 317 athletes, 177 men and 140 women, competed in 26 sports.
South Korea competed at the 2004 Summer Olympics in Athens, from 13 to 29 August 2004. This was the nation's fourteenth appearance at the Olympics, except the 1980 Summer Olympics in Moscow because of its support for the United States boycott. The Korean Olympic Committee sent the nation's smallest delegation to the Games since 1992. A total of 264 athletes, 145 men and 119 women, competed in 25 sports.
Argentina competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's twenty-first appearance at the Olympic Games, except for three different editions. Argentina did not attend the 1904 Summer Olympics in St. Louis, the 1912 Summer Olympics in Stockholm, and the 1980 Summer Olympics in Moscow, because of its support for the United States-led boycott. The sailor Carlos Espínola was the nation's flag bearer at the opening ceremony. 152 competitors, 106 men and 46 women, took part in 86 events in 22 sports.
The Afghanistan national football team is the national football team of Afghanistan and is controlled by the Afghanistan Football Federation. Founded in 1922, they played their first international game against Iran in Kabul, 1941. Afghanistan then joined FIFA in 1948 and the AFC in 1954, as one of the founding members. They play their home games at the Ghazi National Olympic Stadium in Kabul, the capital of Afghanistan. In 2013, Afghanistan won the 2013 SAFF Championship and earned the "FIFA Fair Play Award". Afghanistan has never qualified for the AFC Asian Cup.
The Pakistan national field hockey team represents Pakistan in international field hockey. Having played its first match in 1948, it is administered by the Pakistan Hockey Federation (PHF), the governing body for hockey in Pakistan. It has been a member of the International Hockey Federation (FIH) since 1948 and was founding member of the Asian Hockey Federation (ASHF), which was formed in 1958. Pakistan is one of the most successful national field hockey teams in the world with a record four Hockey World Cup wins.
The United States men's national field hockey team represents the United States in the international field hockey competitions. The governing body is the United States Field Hockey Association (USFHA), which is a US Olympic Committee organization.
Germany competed at the 2008 Summer Olympics in Beijing, People's Republic of China. A total of 439 athletes were nominated to participate in the Games. The German Olympic Sports Confederation nominated athletes on 29 May, 23 June and 15 July 2008. Reaching the qualification standard set by the relevant sport's international governing body did not automatically mean that the athlete was nominated for Beijing, as the DOSB had stricter qualification standards. An athlete needed to have a somewhat realistic chance for a top 12 position. An exception to this are the team events, as the number of competing teams is already very limited through the IOC standards, and a chance for a respective place is already given by the qualification.
A total of 433 competitors competed for Australia at the 2008 Summer Olympics in Beijing. The team was Australia's second largest away team after the 2004 Summer Olympics in Athens, which included a team of 482 competitors. Australian athletes have competed in every Summer Olympic Games of the modern era.
Italy competed at the 2008 Summer Olympics, held in Beijing, China. The country sent a delegation of 344 athletes to compete.
Afghanistan has competed in 15 Summer Games. They have never appeared in any Winter Games. The country made its first appearance at the Berlin Games in 1936. It has sent a delegation to 14 of the 19 subsequent Summer Games since then. It is organised by the Afghanistan National Olympic Committee, which is currently presided by Nazar Mohammad Mutmaeen.
China was the host nation of the 2008 Summer Olympics. China was represented by the Chinese Olympic Committee (COC), and the team of selected athletes were officially known as Team China.
The Russian Federation competed at the 2008 Summer Olympics, held in Beijing, China, represented by the Russian Olympic Committee. Russia competed in all sports except baseball, field hockey, football, softball, and taekwondo. They ranked third in the medal table by golds (24) and overall (60). Russia also had 14 medals stripped for doping violations, the most of any nation at the 2008 Olympics.
Argentina competed at the 2008 Summer Olympics held in Beijing, China, from 8 to 24 August 2008. 137 athletes qualified for the Olympic Games in 19 sports. Manu Ginóbili, basketball player and gold medalist at the 2004 Summer Olympics, was the nation's flag bearer at the opening ceremony.
The Portugal national under-23 football team represents Portugal in international football competitions in Olympic Games, as well as in under–23 football tournaments. The selection is limited to players under the age of 23, except three over-age players. The team is controlled by the Portuguese Football Federation (FPF). In three participations, Portugal's highest place was fourth, in 1996. This team also competed in the now-defunct Under-23 European Championship. The first time Portugal participated in the Olympic Football Tournament, they fielded main team players since the International Olympic Committee rules allowed to do so back then and in the 1980s, the team was composed of semi-professional players. The team currently qualifies in accordance to their under-21 team position in the UEFA Under-21 Championship. The results below comprise both the under-23 team as well as the Olympic team. They won the world championships
New Zealand competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's twenty-fourth appearance at the Olympics. The New Zealand Olympic Committee sent 184 athletes, 97 men, and 87 women to the Games to compete in 16 sports, the nation's largest ever delegation.
Argentina competed at the 2012 Summer Olympics in London, United Kingdom, from 27 July to 12 August 2012. This was the nation's twenty-third appearance at the Summer Olympic Games, having missed only three editions: the 1904 Summer Olympics in St. Louis, the 1912 Summer Olympics in Stockholm, and the 1980 Summer Olympics in Moscow, because of its support for the United States-led boycott.
South Korea competed at the 2012 Summer Olympics in London, from July 27 to August 12, 2012. This was the nation's sixteenth appearance at the Olympics, having missed the 1980 Summer Olympics in Moscow because of its support for the United States boycott. The Korean Olympic Committee sent the nation's smallest delegation to the Games since 1992. A total of 248 athletes, 135 men and 113 women, competed in 22 sports.
