Introduction
Comoros competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, due to the COVID-19 pandemic. It was the nation's seventh consecutive appearance at the Summer Olympics.
Competitors
The following is the list of number of competitors in the Games.
| Sport | Men | Women | Total |
|---|---|---|---|
| Athletics | 1 | 1 | 2 |
| Judo | 1 | 0 | 1 |
| Total | 2 | 1 | 3 |
Athletics
Comoros received the universality slots from the World Athletics to send two athletes (one male and one female) to the Olympics. Amed Elna, who studied law at Sorbonne University, Paris, was flag bearer for her nation in the opening ceremony. She competed in the 100 metres in which she finished eighth in the first preliminary heat running a time of 14.30, which was a new personal best.
- Key
- Note–Ranks given for track events are within the athlete's heat only
- Q = Qualified for the next round
- q = Qualified for the next round as a fastest loser or, in field events, by position without achieving the qualifying target
- NR = National record
- N/A = Round not applicable for the event
- Bye = Athlete not required to compete in round
- Track & road events
| Athlete | Event | Heat | Quarterfinal | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | Result | Rank | ||
| Fadane Hamadi | Men's 110 m hurdles | 14.99 | 8 | — | Did not advance | ||||
| Amed Elna | Women's 100 m | 14.30 | 9 | Did not advance | |||||
Judo
Comoros received an invitation from the Tripartite Commission and the International Judo Federation to send Housni Thaobani in the men's half-middleweight category (81 kg) to the Olympics, marking the country's debut in the sport.
| Athlete | Event | Round of 64 | Round of 32 | Round of 16 | Quarterfinals | Semifinals | Repechage | Final / BM | |
|---|---|---|---|---|---|---|---|---|---|
| Opposition Result |
Opposition Result |
Opposition Result |
Opposition Result |
Opposition Result |
Opposition Result |
Opposition Result |
Rank | ||
| Housni Thaoubani | Men's –81 kg |  Pacek (SWE)L 00–10 |
Did not advance | ||||||