Sweden competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This nation has competed at every Summer Olympic Games in the modern era, except for the 1904 Summer Olympics in St. Louis. The Swedish Olympic Committee sent the nation's smallest team to the Games since the 1976 Summer Olympics in Montreal. A total of 115 athletes, 62 men and 53 women, competed only in 20 different sports. Women's football was the only team-based sport in which Sweden had its representation at these Games. There was only a single competitor in boxing, diving, artistic gymnastics, judo, modern pentathlon, and rowing.
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.
Switzerland competed at the 2000 Summer Olympics in Sydney, Australia. 102 competitors, 64 men and 38 women, took part in 82 events in 19 sports.
Brazil competed at the 2000 Summer Olympics in Sydney, Australia. Brazilian athletes won twelve medals: six silver and six bronze, in the first Summer Olympics edition without a gold medal since the 1976 Summer Olympics. The 205 competitors, 111 men and 94 women, took part in 96 events in 23 sports.
Japan competed at the 2000 Summer Olympics in Sydney, Australia. 266 competitors, 156 men and 110 women, took part in 156 events in 28 sports.
Hungary competed at the 2000 Summer Olympics in Sydney, Australia. 178 competitors, 109 men and 69 women, took part in 137 events in 23 sports.
Spain competed at the 2000 Summer Olympics in Sydney, Australia. 321 competitors, 216 men and 105 women, took part in 165 events in 27 sports.
Canada competed at the 2000 Summer Olympics in Sydney, Australia, held from 15 September to 1 October 2000. 294 competitors, 150 men, and 144 women, took part in 175 events in 29 sports.
Colombia competed at the 2000 Summer Olympics in Sydney, Australia. Colombia won its first ever gold medal at these Olympic games. 44 competitors, 25 men and 19 women, took part in 45 events in 13 sports.
Kazakhstan competed at the 2000 Summer Olympics in Sydney, Australia. 130 competitors, 86 men and 44 women, took part in 104 events in 17 sports.
Greece competed at the 2000 Summer Olympics in Sydney, Australia. Greek athletes have competed in every Summer Olympic Games. At the closing ceremony, a Greek segment was performed, as the country hosted the next Olympics in Athens four years later. Two Greek flags were also hoisted in preparation for the handover, with the Greek national anthem played once.
Sweden's entry at the 2000 Summer Olympics in Sydney, Australia consisted of 150 competitors who took part in 92 events in 22 sports.
Turkey competed at the 2000 Summer Olympics in Sydney, Australia.
Finland competed at the 2000 Summer Olympics in Sydney, Australia.
Ireland competed at the 2000 Summer Olympics in Sydney, Australia.
Singapore competed at the 2000 Summer Olympics in Sydney, Australia.
Athletes from East Germany competed at the 1980 Summer Olympics in Moscow, USSR. 346 competitors, 222 men and 124 women, took part in 167 events in 17 sports.
Uzbekistan competed at the 2000 Summer Olympics in Sydney, Australia. 70 competitors, 52 men and 18 women, took part in 69 events in 12 sports.
Uruguay competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's twentieth appearance at the Olympics, Uruguay missed the 1980 Summer Olympics in Moscow, because of its partial support for the United States boycott.
The United States of America (USA), the previous host of the 1996 Olympics at Atlanta, competed at the 2000 Summer Olympics in Sydney, Australia. 586 competitors, 333 men and 253 women, took part in 265 events in 31 sports.
