Canada competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. Canadian athletes have competed in every Summer Olympic Games since 1900, except the 1980 Summer Olympics in Moscow because of the country's support for the US-led boycott.
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.
Japan competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. Japanese athletes have competed at every Summer Olympic Games in the modern era since 1912 except for two editions; it was not invited to the 1948 Summer Olympics in London for its role in World War II, and was also part of the US-led boycott of the 1980 Summer Olympics in Moscow. The Japanese Olympic Committee sent a total of 306 athletes, 139 men and 167 women, to compete in 27 sports. For the first time in its Olympic history, Japan was represented by more female than male athletes.
Italy competed at the 2004 Summer Olympics in Athens, Greece, from the 13th to the 29th of August 2004. The country has competed at every Summer Olympic games in the modern era, except for the 1904 Summer Olympics in St. Louis. The Italian National Olympic Committee sent the nation's largest ever delegation in history to the Games. A total of 364 athletes, 229 men and 135 women, competed in 27 sports.
China competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's ninth appearance at the Summer Olympics since its debut in 1952. A total of 384 Chinese athletes, 136 men and 248 women, were selected by the Chinese Olympic Committee to compete in 28 sports. For the third time in its Olympic history, China was represented by more female than male athletes.
Hungary competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. Hungarian athletes have competed at every Summer Olympic Games in the modern era, except the 1920 Summer Olympics in Antwerp, and the 1984 Summer Olympics in Los Angeles because of the Soviet boycott. The Hungarian Olympic Committee sent a total of 209 athletes to the Games, 119 men and 90 women, to compete in 20 sports. Water polo and handball were the only team-based sports in which Hungary had its representation in these Olympic Games. There was only a single competitor in road cycling and mountain biking.
The United States competed at the 1976 Summer Olympics in Montreal, Quebec, Canada. 396 competitors, 278 men and 118 women, took part in 189 events in 19 sports.
New Zealand competed at the 2000 Summer Olympics in Sydney, Australia. The New Zealand Olympic Committee was represented by 151 athletes and 100 officials at these Summer Olympics.
The United States of America (USA) competed at the 1988 Summer Olympics in Seoul, South Korea. 527 competitors, 332 men and 195 women, took part in 230 events in 27 sports. The United States finished outside of the top two in the overall medal count for the first time and in the gold medal count for only the second time. That was mainly caused by the extensive state-sponsored doping programs that were developed in these communist countries to fulfil their political agenda on an international stage.
The United States of America (USA) competed at the 1992 Summer Olympics in Barcelona, Spain. 545 competitors, 355 men and 190 women, took part in 248 events in 28 sports. At the closing ceremony, a segment of American culture was performed, as the country hosted the next Olympics in Atlanta.
Spain was the host nation for the 1992 Summer Olympics in Barcelona. The Games were quite exceptional for Spain because their athletes were competing not only in their home country, but also in the home city of IOC President Juan Antonio Samaranch. 422 competitors, 297 men and 125 women, took part in 195 events in 29 sports.
The United States (USA) was the host nation for the 1996 Summer Olympics in Atlanta. 646 competitors, 375 men and 271 women, took part in 263 events in 31 sports.
Yugoslavia competed at the 1984 Summer Olympics in Los Angeles, United States which took place from 29 July to 12 August 1984. Yugoslav athletes had competed in every Summer Olympic Games since their official debut in 1920. The Yugoslav Olympic Committee (JOK) sent a delegation of 139 athletes, 105 men and 34 women, competing in 16 sports, down from 164 competitors in 1980. Due to the Soviet-led boycott, Yugoslavia was one of only three Communist countries to take part at the Games, along with China and Romania.
Great Britain, represented by the British Olympic Association (BOA), competed as the host nation for the 1948 Summer Olympics in London. It was the second time that the United Kingdom had hosted the Summer Olympic Games, equalling the record of France and the United States to that point. British athletes have competed in every Summer Olympic Games. 404 competitors, 335 men and 68 women, took part in 139 events in 21 sports.
Mexico was the host nation for the 1968 Summer Olympics in Mexico City. 275 competitors, 233 men and 42 women, took part in 146 events in 20 sports.
Brazil sent a delegation to compete at the 2008 Summer Olympics in Beijing, China, in August 2008. Brazilian athletes have competed in every Summer Olympic Games since 1920, except the 1928 Summer Olympics. The country is represented by the Brazilian Olympic Committee. Brazil headed to the Beijing Games with its largest Olympic delegation at the time, 277 athletes, including 132 women.
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.
The United States of America (USA) competed at the 2004 Summer Olympics in Athens, Greece. 533 competitors, 279 men and 254 women, took part in 254 events in 31 sports.
The United States of America (USA) competed at the 2000 Summer Olympics in Sydney, Australia. 586 competitors, 333 men and 253 women, took part in 265 events in 31 sports.
The United States competed in the 2019 Pan American Games in Lima, Peru from July 26 to August 11, 2019. The team included 313 men and 327 women.
