Australia at the 1920 Summer Olympics
Australia competed at the 1920 Summer Olympics in Antwerp, Belgium. Australian athletes have competed in every Summer Olympic Games.
A brother and sister combination swam for Australia, Frank and Lily Beaurepaire.
Medalists
| Medal | Name | Sport | Event | Date |
| Athletics | Men's 3000 m walk | |||
| , Harry Hay William Herald, Ivan Stedman | Swimming | Men's 4 × 200 m freestyle relay | ||
| Swimming | Men's 1500 m freestyle |
Aquatics
Diving
One diver represented Australia in 1920. It was the nation's debut in the sport. Beaurepaire finished fourth in her semifinal group in the 10 metre platform, just outside the top three needed to qualify for the final.; Women
Ranks given are within the semifinal group.
Swimming
Six swimmers, including one woman, represented Australia in 1920. It was the nation's second independent appearance in the sport. All five of the men were involved in the silver medal-winning relay team, though Kirkland is not credited with a medal by the IOC; he was replaced by Frank Beaurepaire after the semifinals. Beaurepaire won an individual bronze in the 1500 metres; his sister Lily was unable to advance to the finals in either of her events as Australia's sole female swimmer.Ranks given are within the heat.
; Men
; Women
Athletics
Four athletes represented Australia in 1920. It was the nation's fourth appearance in the sport. Parker's silver medal in the short racewalk was the nation's first medal since 1900.Ranks given are within the heat.