Finland competed at the 1920 Summer Olympics in Antwerp, Belgium for the first time as a fully independent state. It did compete at the previous Olympics, however, only as the Russian-dependent Grand Duchy of Finland. 63 competitors, 62 men and 1 woman, took part in 51 events in 9 sports.

Three divers, all men, represented Finland in 1920. It was the nation's third appearance in the sport. Valkama was the only diver to advance to a final, placing fifth in the plain high diving. This result matched Finland's best diving result to date.

Ranks given are within the semifinal group.

A single swimmer represented Finland in 1920. It was the nation's third appearance in the sport as well as the Olympics. Aaltonen won bronze medals in both of his breaststroke events. They were Finland's first Olympic swimming medals; Aaltonen had been the first Finn to advance to a swimming event final.

Ranks given are within the heat.

26 athletes represented Finland in 1920. It was the nation's third appearance in athletics, a sport in which Finland had competed each time the country appeared at the Olympics. The Finnish team garnered nine gold medals, matching the United States for the most in that category. With only about a quarter of the number of athletes, however, the Finns could not match the depth of the United States and finished with 13 fewer total medals.

The Finland team's greatest successes came in long distance running events (gold medals in the 10,000 metres, marathon, individual cross country, and team cross country) and throwing events (golds in the discus throw, shot put, and javelin throw—sweeping the medals in the latter). They also took the championships in the triple jump and the pentathlon.

Ranks given are within the heat.

A single equestrian represented Finland in 1920. It was the nation's debut in the sport. Wilkman competed in the eventing competition, placing 17th.

Two pentathletes represented Finland in 1920. It was the nation's debut in the sport.

A point-for-place system was used, with the lowest total score winning.

Three figure skaters represented Finland in 1920. It was the nation's debut in the sport. The Jakobssons, a married couple, won the pairs competition. Ilmanen placed fifth of nine in the men's singles.

Nine shooters represented Finland in 1920. It was the nation's third appearance in the sport as well as the Olympics. The Finns were looking to improve upon the pair of bronze medals they had won in 1912, which was the country's best result to date. They were successful, taking a silver medal in the team running deer single shots competition as well as another pair of bronzes in other team competitions.

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