Guam 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 ninth consecutive appearance at the Summer Olympics.

Competitors The following is the list of number of competitors in the Games. SportMenWomenTotalAthletics 0 1 1Judo 1 0 1Swimming 1 1 2Wrestling 0 1 1 Total 2 3 5

Athletics

Guam received universality slots from IAAF to send a female track and field athlete to the Olympics.

Track & road events AthleteEventPreliminariesHeatSemifinalFinalResultRankResultRankResultRankResultRankRegine TugadeWomen's 100 m12.174Did not advance

Judo

Guam entered one male judoka into the Olympic tournament based on the International Judo Federation Olympics Individual Ranking.International Judo Federation Olympics Ranking

AthleteEventRound of 64Round of 32Round of 16QuarterfinalsSemifinalsRepechageFinal / OppositionResultOppositionResultOppositionResultOppositionResultOppositionResultOppositionResultOppositionResultRankJoshter AndrewMen's −81 kgL 00–11Did not advance

Swimming

Guam qualified two swimmers in two events.

AthleteEventHeatSemifinalFinalTimeRankTimeRankTimeRankJagger StephensMen's 100 m freestyle52.7257Did not advanceMineri GomezWomen's 100 m freestyle1:04.0051Did not advance

Wrestling

For the first time since London 2012, Guam qualified one wrestler for the women's freestyle 53 kg into the Olympic competition, by progressing to the top two finals at the 2021 African & Oceania Qualification Tournament in Hammamet, Tunisia.

Freestyle AthleteEventRound of 16QuarterfinalSemifinalRepechageFinal / OppositionResultOppositionResultOppositionResultOppositionResultOppositionResultRankRckaela AquinoWomen's −53 kgL 0–5 VTDid not advance14

References