Australia has sent athletes to every Summer Olympic Games, as well as every Winter Olympics except 1924–32 and 1948. In 1908 and 1912 Australia competed with New Zealand under the name Australasia.
Hungary first participated at the Olympic Games at the inaugural 1896 Games, and has sent athletes to compete in most Summer Olympic Games and every Winter Olympic Games since then. The nation was not invited to the 1920 Games for its role in World War I, and was part of the Soviet-led boycott of the 1984 Summer Olympics.
Italy has sent athletes to most of the modern Olympic Games held since 1896, outside of not having officially participated in the 1904 Summer Olympics.
Luxembourg's National Olympic Committee, the Luxembourg Olympic and Sporting Committee, was founded in 1912 and sent its first team to the 1912 Summer Olympics in Stockholm.
Norway first participated at the Summer Olympics in 1900, and has sent athletes to compete in every Games since then, except for the 1980 Summer Olympics in Moscow when they participated in the American-led boycott and, as previously thought, the 1904 Games in St. Louis, United States. However, at the beginning of the 21st century, it was discovered that wrestlers Charles Ericksen and Bernhoff Hansen, who were Norwegian expatriates in America whose medals at the 1904 Summer Olympics were previously attributed to United States, still held Norwegian citizenship at the time of the games. They won the gold medals in the wrestling welterweight and heavyweight events respectively.
The all-time medal table for all Olympic Games from 1896 to 2024, including Summer Olympic Games, Winter Olympic Games, and a combined total of both, is tabulated below. These Olympic medal counts do not include the 1906 Intercalated Games which are no longer recognized by the International Olympic Committee (IOC) as official Games. The IOC itself does not publish all-time tables, and publishes unofficial tables only per single Games. This table was thus compiled by adding up single entries from the IOC database.
Cuba first participated at the Olympic Games in 1900, and has sent athletes to compete in 22 out of 29 Summer Olympic Games overall, up to and including the 2024 Paris Olympics.
Brazil first participated at the Olympic Games in 1920, after missing the previous five Summer editions. The country has sent athletes to compete in every Summer Olympic Games since then, except for the 1928 Games. As of 2024, Brazilian athletes have won a total of 170 medals in 18 different Summer sports.
China's participation in the Olympic games is relatively recent. The People's Republic of China sent its first full athletic delegation to the Summer Olympic Games in the 1984 Summer Olympics which was held in Los Angeles, United States.
Portugal first participated at the Olympic Games in 1912 and has since taken part in every edition of the Summer Olympic Games. Earlier that year, the Olympic Committee of Portugal was recognised by the International Olympic Committee as the Portuguese National Olympic Committee. In 1952, athletes representing Portugal competed for the first time at the Olympic Winter Games, and have only missed two editions since 1988.
New Zealand first sent an independent team to the Olympics in 1920. Before this, at the 1908 and 1912 Summer Olympics, New Zealand and Australian athletes competed together in a combined Australasia team. New Zealand has also participated in most Winter Olympic Games since 1952, missing only the 1956 and 1964 Games.
Morocco first participated in the Olympic Games in 1960, and has sent athletes to compete in every Summer Olympic Games since then, except when they joined the American-led boycott of the 1980 Summer Olympics. Morocco also boycotted the 1976 Games, withdrawing after having initially sent a delegation. In doing so, Morocco joined the boycott of the Games by most African countries, in protest against New Zealand's participation following an All Blacks rugby match, unrelated to the Olympics, against an apartheid team from South Africa. Only one Moroccan representative had time to compete before his country's withdrawal: Abderahim Najim took part in the Men's Light Flyweight event in boxing, and lost his first and only match before joining the national contingent's premature departure.
Venezuela first participated at the Olympic Games in 1948, and has sent athletes to compete in every Summer Olympic Games since then. Venezuela has also participated in the Winter Olympic Games since 1998. The Venezuelan Olympic Committee (COV) was created in 1935.
Mongolia first participated at the Olympic Games in 1964, and has sent athletes to compete in all but one Summer Olympic Games since then, being part of the boycott of the 1984 Summer Olympics led by the Soviet Union. Mongolia has also participated in the Winter Olympic Games since 1964, missing only the 1976 Winter Games.
The 2010 Winter Olympics, officially known as the XXI Olympic Winter Games, was a winter multi-sport event held in Vancouver, British Columbia, Canada, from February 12 to February 28. A total of 2,632 athletes representing 82 National Olympic Committees (NOCs) participated in 86 events from 15 different sports and disciplines.
Australia has participated officially in every Paralympic Games since its inauguration in 1960 with the exception of the 1976 Winter Paralympics.
Switzerland made its Paralympic Games début at the inaugural Paralympic Games in Rome in 1960, and has participated in every edition of the Summer Paralympics. It also took part in the inaugural Winter Paralympics in 1976 in Örnsköldsvik, and has competed in every edition of the Winter Games.
Czechoslovakia made its Paralympic Games début at the 1972 Summer Paralympics in Heidelberg, where it was one of just four Eastern Bloc nations competing. Czechoslovakia sent a delegation of nineteen athletes, who all competed in track and field, and won a single bronze medal in the shot put.
