Seychelles competed at the 2020 Summer Olympics in Tokyo.

[3] It was the nation's ninth appearance at the Summer Olympics, with the exception of the 1988 Summer Olympics in Seoul because of its partial support to the North Korean boycott.

[4] Seychelles received an invitation from the Tripartite Commission and the International Judo Federation to send Nantenaina Finesse in the men's middleweight category (90 kg) to the Olympics.

[5][6] Seychellois sailors qualified one boat in each of the following classes through the class-associated World Championships, and the continental regattas.

[7] M = Medal race; EL = Eliminated – did not advance into the medal race Seychelles received a universality invitation from FINA to send two top-ranked swimmers (one per gender) in their respective individual events to the Olympics, based on the FINA Points System of June 28, 2021.