Slovenia 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 since the post-Yugoslav era. The Slovenian Olympic Committee sent the nation's largest ever delegation to the Games in Olympic history. A total of 79 athletes, 56 men and 23 women, competed in 10 sports. For the second consecutive time, men's handball was the only team-based sport in which Slovenia had its representation at these Games.
Croatia 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 since the post-Yugoslav era. The Croatian Olympic Committee sent the nation's smallest delegation to the Games since its debut in 1992. A total of 81 athletes, 66 men and 15 women, competed in 14 sports. Men's water polo, and men's handball were the only team-based sports in which Croatia had its representation in these Olympic Games.
Denmark competed at the 1956 Summer Olympics in Melbourne, Australia and Stockholm, Sweden. 31 competitors, 27 men and 4 women, took part in 25 events in 10 sports.
Athletes from the Federal Republic of Yugoslavia competed at the 2000 Summer Olympics in Sydney, Australia. 109 competitors, 92 men and 17 women, took part in 50 events in 14 sports. These would be the last Summer Games in which athletes from Montenegro and Serbia participated under the name of Yugoslavia. They would compete as Serbia and Montenegro at the 2004 Summer Olympics.
Peru competed at the 1968 Summer Olympics in Mexico City, Mexico. 28 competitors, 16 men and 12 women, took part in 21 events in 8 sports.
Venezuela competed at the 1956 Summer Olympics held in Melbourne, Australia, and in the equestrian events held in Stockholm, Sweden. Twenty-two competitors, all men, were selected by the Venezuelan Olympic Committee to take part in sixteen events across five sports. The delegation featured no female competitors, for the second time, and won no medals. While most of the Venezuelan athletes did not advance past the qualifying rounds of their sports, there were some good placings in the shooting, with Germán Briceño and Carlos Monteverde finishing in the top 10 of their events.
Canada competed at the 1956 Summer Olympics in Melbourne, Australia and Stockholm, Sweden. 92 competitors, 77 men and 15 women, took part in 81 events in 14 sports.
Athletes from the Federal People's Republic of Yugoslavia competed at the 1960 Summer Olympics in Rome, Italy. 116 competitors, 107 men and 9 women, took part in 64 events in 14 sports.
France competed at the 1956 Summer Olympics in Melbourne, Australia and Stockholm, Sweden. 137 competitors, 119 men and 18 women, took part in 95 events in 15 sports.
Cuba competed at the 1956 Summer Olympics in Melbourne, Australia. As a partial support to the Dutch-led boycott, Cuban athletes under the Olympic flag instead of the national flag.
Sweden competed at the 1956 Summer Olympics in Melbourne, Australia, with the exception of the equestrian events, which could not be held in Australia due to quarantine regulations. Instead, those events were held five months earlier in Stockholm, Sweden.
India competed at the 1956 Summer Olympics in Melbourne, Australia. 59 competitors, 58 men and 1 woman, took part in 32 events in 8 sports. Their solitary medal, a gold, came in men's field hockey.
Great Britain, represented by the British Olympic Association (BOA), competed at the 1956 Summer Olympics in Melbourne, Australia. British athletes have competed in every Summer Olympic Games. 189 competitors, 163 men and 26 women, took part in 108 events in 17 sports.
Germany was represented at the 1956 Summer Olympics by a United Team of Germany of athletes from the Federal Republic of Germany (FRG) and, for the first time at Summer Games, also from East Germany which had not joined in 1952. Also, the Saarland athletes who had to enter as a separate team in 1952 could now join in even though the accession of their state was not yet in effect. Thus, this was the only Olympic team ever to comprise athletes from three German states.
The Soviet Union (USSR) competed at the 1956 Summer Olympics in Melbourne, Australia. 272 competitors, 233 men and 39 women, took part in 135 events in 17 sports. the Netherlands, Spain, the Netherlands Antilles, Egypt, Lebanon, Cambodia, Iraq and Switzerland protested against this by boycotting the games. As a partial support to the Dutch-led boycott, Soviet athletes under the Olympic flag instead of the national flag.
Finland competed at the 1956 Summer Olympics in Melbourne, Australia and Stockholm, Sweden. 64 competitors, 63 men and 1 woman, took part in 62 events in 14 sports.
Czechoslovakia competed at the 1956 Summer Olympics in Melbourne, Australia. 63 competitors, 51 men and 12 women, took part in 54 events in 10 sports.
Athletes from the Federal People's Republic of Yugoslavia competed at the 1952 Summer Olympics in Helsinki, Finland. 87 competitors, 77 men and 10 women, took part in 48 events in 11 sports.
The men's coxed pair rowing competition at the 1980 Summer Olympics took place at Krylatskoye Sports Complex Canoeing and Rowing Basin, Moscow, Russian SFSR, Soviet Union. The event was held from 20 to 27 July. There were 11 boats from 11 nations, with each nation limited to a single boat in the event. The event was won by Harald Jährling, Friedrich-Wilhelm Ulrich, and coxswain Georg Spohr of East Germany, the first men to successfully repeat as Olympic champions in the event. It was also the first time that a crew of the same three men earned multiple medals of any colour. East Germany's three straight medals matched the United States for most among nations to that point. Silver went to the Soviet Union again, though with an entirely different team from its 1976 runner-up crew; the silver medalists this time were Viktor Pereverzev, Gennadi Kryuçkin, and cox Aleksandr Lukyanov. Duško Mrduljaš, Zlatko Celent, and cox Josip Reić earned Yugoslavia's first medal in the event with their bronze.
The men's coxed four competition at the 1956 Summer Olympics took place at Lake Wendouree, Ballarat, Australia. It was held from 23 to 27 November and was won by the team from Italy. There were 10 boats from 10 nations, with each nation limited to a single boat in the event. Italy had previously won this event in 1928, tying Switzerland for second-most wins among nations. Sweden (silver) and Finland (bronze) each won their first medal in the men's coxed four. Switzerland had its three-Games silver-medal streak broken, without a Swiss crew competing.
Serbia (1912, 2008–)
Croatia (1992–)
Slovenia (1992–)
Bosnia and Herzegovina (1992 S–)
Independent Olympic Participants (1992 S)
North Macedonia (1996–)
Serbia and Montenegro (1996–2006)
Montenegro (2008–)
Kosovo (2016–)
