Four divers, two men and two women, represented Norway in 1920. It was the nation's second appearance in the sport. As in 1912, no Norwegian diver advanced to the final. Larsen came closest, placing fourth in her 10-metre platform semifinal; a top three finish was required to advance in all events. ; Men Ranks given are within the semifinal group. ; Women Ranks given are within the semifinal group.
Swimming
Two swimmers, both men, represented Norway in 1920. It was the nation's second appearance in the sport. Neither swimmer advanced past the first round in any of their events. Ranks given are within the heat. ; Men
Athletics
16 athletes represented Norway in the nation's independent Olympic debut in 1920. It was the nation's fourth appearance in athletics, a sport in which Norway had competed each time the country had appeared at the Olympics. Løvland won Norway's only athletics medal, taking the gold in the decathlon. Ranks given are within the heat.
Boxing
14 boxers represented Norway at the 1920 Games. It was the nation's debut in boxing. Sørsdal won the nation's first Olympic boxing medal with a silver in the light heavyweight class.
Cycling
Four cyclists represented Norway in 1920. It was the nation's second appearance in the sport. All four competed in the road time trial, with Flatby coming in 28th to be the best Norwegian cyclist at the Games. The team came in eighth overall in combined time.
Road cycling
Equestrian
Football
Norway competed in the Olympic football tournament for the second time. The country's first Olympic victory was a stunning 3–1 win over Great Britain, the previously undefeated winner of three gold medals in three attempts. It would also turn out to be Norway's only victory in 1920, as the team was defeated by Czechoslovakia in the quarterfinals and by Italy in the first round of the consolation tournament. ; First round ; Quarterfinals ; Consolation first round ;Final rank: 8th
Gymnastics
Twenty-six gymnasts represented Norway in 1920. It was the nation's third appearance in the sport. Norway entered a team in the free system competition; competing against only Denmark, the Norwegians took second place and the silver medal. Hol was the only gymnast to enter the individual competition, placing fourteenth of twenty-five.
Artistic gymnastics
Modern pentathlon
Two pentathletes represented Norway in 1920. It was the nation's second appearance in the sport, having competed at both instances of the Olympic modern pentathlon. A point-for-place system was used, with the lowest total score winning.
Rowing
Thirteen rowers represented Norway in 1920. It was the nation's third appearance in the sport. Both boats earned bronze medals, matching the nation's best results to that time. The coxed fours boat took third place in the final, while the eights team earned their bronze as the best of two losing semifinalists. Ranks given are within the heat.
Sailing
Fifty-nine sailors represented Norway in 1920, by far the most of any country. It was the nation's third appearance in the sport. Norway took seven gold medals, three silvers, and a bronze.
Skating
Figure skating
Six figure skaters represented Norway in 1920. It was the nation's debut in the sport. The Norwegian skaters took three medals in the men's singles and the pairs, but finished without a gold medal.
Shooting
Sixteen shooters represented Norway in 1920. It was the nation's fourth appearance in the sport as well as the Olympics. Norway took all four gold medals in the running deer events. Lilloe-Olsen was on both of the gold medal teams, as well as taking the individual gold in the double shots version. Otto Olsen was on the single shots team, took gold in the individual version of that event, and added a third gold in the prone 300 metre military rifle as well as being on two silver medal rifle teams. In all, the nation won 11 medals, more than any other country except the United States.
Tennis
Three tennis players, two men and a woman, competed for Norway in 1920. It was the nation's second appearance in the sport. Each of the three players lost their first singles match. The men, playing as a pair, won a single match to advance to the quarterfinals before being defeated.
Wrestling
Seven wrestlers competed for Norway in 1920. It was the nation's third appearance in the sport. Andersen was the only medalist, taking a bronze in the Greco-Roman lightweight. Johnsen almost added another in the middleweight, but lost the bronze medal match to finish fourth.
