El Salvador at the 2020 Summer Olympics

El Salvador 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, because of the COVID-19 pandemic. It was the nation's twelfth appearance at the Summer Olympics.

Competitors
The following is the list of the number of Salvadoran competitors participating in the Games:

Athletics
El Salvador received a universality slot from the World Athletics to send a male athlete to the Olympics.


 * 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

Boxing
El Salvador entered one boxer to compete in the women's featherweight category at the Olympic tournament. With the cancellation of the 2021 Pan American Qualification Tournament in Buenos Aires, Yamileth Solorzano received a spare berth declined by one of the original entries, as the next highest-ranked boxer vying for qualification from the Americas in the IOC's Boxing Task Force Rankings. This marked the country's return to the sport for the first time since 1988.

Sailing
Salvadoran sailors qualified one boat for each of the following classes through the class-associated World Championships, and the continental regattas.

M = Medal race; EL = Eliminated – did not advance into the medal race

Swimming
El Salvador 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.