A total of 32 players (16 pairs) from 7 nations competed in the event, which was held from 17 to 24 August 1920 at the Beerschot Tennis Club.

[1] French pair Suzanne Lenglen and Max Decugis took gold, with British players Kathleen McKane Godfree and Max Woosnam earning silver and Czechoslovakia's Milada Skrbková and Ladislav Žemla winning bronze.

Tennis was not a medal sport from 1928 to 1984, though there were demonstration events in 1968 (which included mixed doubles) and 1984 (which did not).

Decugis had won multiple mixed doubles titles with other partners previously.

[1] Belgium, Czechoslovakia, Denmark, and Italy each made their mixed doubles debut.