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.
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.
The United States was the host nation of the 1984 Summer Olympics in Los Angeles, California. It was the nineteenth time that Team USA participated, having boycotted the 1980 Summer Olympics. 522 competitors, 339 men and 183 women, took part in 217 events in 25 sports.
Great Britain, represented by the British Olympic Association (BOA), competed at the 2000 Summer Olympics in Sydney, Australia. British athletes have competed in every Summer Olympic Games. 310 competitors, 181 men and 129 women, took part in 179 events in 23 sports. These were the first Summer Olympics in which the team of selected athletes was officially known as Team GB in a highly successful attempt to unify all the competing athletes across all the sports and events and boost team morale. Going into the games following their exceptionally poor performance in Atlanta widespread expectations of the team were low.
The Czech Republic competed at the 2000 Summer Olympics in Sydney, Australia.
Belarus competed in the Summer Olympic Games for the first time as an independent nation at the 1996 Summer Olympics in Atlanta, United States. Previously, Belarusian athletes competed for the Unified Team at the 1992 Summer Olympics. 157 competitors, 91 men and 66 women, took part in 115 events in 19 sports.
Portugal competed at the 2000 Summer Olympics in Sydney, Australia.
Azerbaijan competed at the 2000 Summer Olympics in Sydney, Australia. They won their first gold medal during these games. 31 competitors, 25 men and 6 women, took part in 14 events in 8 sports.
Algeria competed at the 2000 Summer Olympics in Sydney, Australia. 47 competitors, 37 men and 10 women, took part in 42 events across 10 sports.
Austria competed at the 1996 Summer Olympics in Atlanta, United States. 72 competitors, 56 men and 16 women, took part in 53 events in 15 sports.
Australia competed at the 1952 Summer Olympics in Helsinki, Finland. 81 competitors, 71 men and 10 women, took part in 67 events in 12 sports. Australian athletes have competed in every Summer Olympic Games. As the country hosted the next Olympics in Melbourne, an Australian segment was performed at the closing ceremony.
Australia competed at the 1948 Summer Olympics in London, England. 75 competitors, 66 men and 9 women, took part in 52 events in 11 sports. Australian athletes have competed in every Summer Olympic Games.
Australia competed at the 1932 Summer Olympics in Los Angeles, United States. Due to the Great Depression, Australia could only afford to send 13 athletes to the Games.
Argentina competed at the 1948 Summer Olympics in London, England. 199 competitors, 188 men and 11 women, took part in 101 events in 16 sports. It was the country's largest delegation until the 2016 Summer Olympics. With 3 golds, 3 silvers, and a bronze, it tied Argentina's performance in 1928, and remains the last time the country achieved 7 medals in an edition of the Olympics.
Australia competed at the 1928 Summer Olympics in Amsterdam, Netherlands. 18 competitors, 14 men and 4 women, took part in 26 events in 6 sports.
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.
Austria competed at the 1948 Summer Olympics in London, England. 147 competitors, 115 men and 32 women, took part in 79 events in 17 sports.
New Zealand competed at the 1928 Summer Olympics in Amsterdam, Netherlands with a team of four athletes, four swimmers and two boxers. Seven men and three women represented their country, accompanied by four others. The athletes were led by Arthur Porritt, who was the only New Zealand competitor who had attended the previous Summer Olympics in 1924; Porritt would four decades later become New Zealand's 11th Governor-General. The team won one medal; boxer Ted Morgan won gold in the men's welterweight. Excluding Malcolm Champion's gold as part of a combined Australasia team in 1912, this was New Zealand's first Olympic gold medal.
Mexico competed at the 1936 Summer Olympics in Berlin, Germany. 32 competitors, all men, took part in 15 events in 8 sports.
Romania competed at the 2012 Summer Olympics in London from 27 July to 12 August 2012. This nation has competed at the Summer Olympic Games since its official debut in 1924, missing only two editions, including the 1948 Summer Olympics. Despite being London's third Olympic Games, this is the first time the Romanian team has competed in London. The Romanian Olympic and Sports Committee sent a total of 103 athletes to the Games, 54 men and 49 women, to compete in 14 sports.
Australasia (1908–1912)
