At the 1920 Summer Olympics in Antwerp, ten swimming events were contested.
[1] The women's 300 metre freestyle event was new since the previous Games in 1912.
The competitions were held from Sunday August 22, 1920, to Sunday August 29, 1920.
There was a total of 116 participants from 19 countries competing.
A total of 116 swimmers (92 men and 24 women) from 19 nations (men from 17 nations - women from 9 nations) competed at the Antwerp Games: