South Korea 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.

Medalists

| width="60%" align="left" valign="top" | Medal Name Sport Event Date Kim Je-deokAn San Archery Mixed team An SanJang Min-heeKang Chae-young Archery Women's team Kim Je-deokKim Woo-jinOh Jin-hyek Archery Men's team Oh Sang-uk Kim Jun-ho Kim Jung-hwan Gu Bon-gil Fencing Men's team sabre An San Archery Women's individual Shin Jea-hwan Gymnastics Men's vault Choi In-jeongKang Young-miLee Hye-inSong Se-ra Fencing Women's team épée Lee Da-bin Taekwondo Women's +67 kg Cho Gu-ham Judo Men's 100 kg Kim Min-jung Shooting Women's 25 metre pistol Kim Jung-hwan Fencing Men's sabre Jang Jun Taekwondo Men's 58 kg An Baul Judo Men's 66 kg An Chang-rim Judo Men's 73 kg In Kyo-don Taekwondo Men's +80 kg Kweon Young-junMa Se-geonPark Sang-youngSong Jae-ho Fencing Men's team épée Choi Soo-yeonKim Ji-yeonYoon Ji-suSeo Ji-yeon Fencing Women's team sabre Yeo Seo-jeong Gymnastics Women's vault Kim So-yeongKong Hee-yong Badminton Women's doubles Jun Woong-tae Modern pentathlon Men's individual

| width="20%" align="left" valign="top" | Medals by sportSport TotalArchery4004Badminton0011Fencing1135Gymnastics1012Judo0123Modern pentathlon0011Shooting0101Taekwondo0123Total641020 | width="20%" align="left" valign="top" |

Competitors The following is the list of number of competitors in the Games: SportMenWomenTotalArchery 3 3 6Athletics 5 2 7Badminton 3 7 10Baseball 24 24Basketball 0 12 12Boxing 0 2 2Canoeing 1 0 1Cycling 0 2 2Diving 3 2 5Equestrian 1 0 1Fencing 9 9 18Football 22 0 22Golf 2 4 6Gymnastics 5 2 7Handball 0 14 14Karate 1 0 1Judo 7 7 14Modern pentathlon 2 2 4Rowing 0 1 1Rugby sevens 13 0 13Sailing 4 0 4Shooting 7 8 15Sport climbing 1 1 2Swimming 7 5 12Table tennis 3 3 6Taekwondo 3 3 6Tennis 1 0 1Volleyball 0 12 12Weightlifting 3 4 7Wrestling 2 0 2 Total 132 105 237

Archery

South Korean archers qualified each for the men's and women's events by reaching the quarterfinal stage of their respective team recurves at the 2019 World Archery Championships in 's-Hertogenbosch, Netherlands.

The South Korean archery team for the rescheduled Games was announced on 24 April 2021, including London 2012 gold medalist Oh Jin-hyek and Rio 2016 Olympian and former world record holder Kim Woo-jin.

Men Athlete Event Ranking roundMen's ranking round results for Archery:

Round of 64Men's round of 64 results for Archery:

Round of 32Men's round of 32 results for Archery:

Round of 16Men's round of 16 results for Archery: QuarterfinalsMen's quarterfinals results for Archery:

SemifinalsMen's semifinals results for Archery: Final / Men's final results for Archery: Score Seed OppositionScore OppositionScore OppositionScore OppositionScore OppositionScore OppositionScore Rank Kim Je-deok Individual 688 1 W 6–0 L 3–7 Did not advance Oh Jin-hyek 681 3 W 6–0 L 5–6 Did not advance Kim Woo-jin 680 4 W 6–0 W 6–2 W 6–0 L 4–6 Did not advance Kim Je-deokKim Woo-jinOh Jin-hyek Team 2049 1 colspan="2" W 6–0 W 5–4 W 6–0

Women Athlete Event Ranking roundWomen's ranking round results for Archery:

Round of 64Women's round of 64 results for Archery:

Round of 32Women's round of 32 results for Archery:

Round of 16Women's round of 16 results for Archery:

QuarterfinalsWomen's quarterfinals results for Archery:

SemifinalsWomen's semifinals results for Archery:

Final / Women's semifinals results for Archery:

Score Seed OppositionScore OppositionScore OppositionScore OppositionScore OppositionScore OppositionScore Rank An San Individual 680 1 W 6–2 W 7–1 W 6–4 W 6–0 W 6–5 W 6–5 Jang Min-hee 677 2 W 6–0 L 2–6 Did not advance Kang Chae-young 675 3 W 6–0 W 7–1 W 6–2 L 1–7 Did not advance An SanJang Min-heeKang Chae-young Team 2032 1 colspan="2" W 6–0 W 5–1 W 6–0

Mixed Athlete Event Ranking roundMixed's ranking round results for Archery: Round of 16Mixed's round of 16 results for Archery: QuarterfinalsMixed's quarterfinals results for Archery: SemifinalsMixed's semifinals results for Archery: Final / Mixed's final results for Archery: Score Seed OppositionScore OppositionScore OppositionScore OppositionScore Rank Kim Je-deokAn San Team 1368 1 Q W 6–0 W 6–2 W 5–1 W 5–3

Athletics

South Korean athletes further achieved the entry standards, either by qualifying time or by world ranking, in the following track and field events (up to a maximum of 3 athletes in each event):

Track & road events AthleteEventFinalResultRankChoe Byeong-kwangMen's 20 km walk1:28:1237Oh Joo-hanMen's marathonShim Jung-sub2:20:3649Ahn Seul-kiWomen's marathon2:41:1157Choi Kyung-sun2:35:3334

Field events AthleteEventQualification FinalDistancePositionDistancePositionWoo Sang-hyeokMen's high jump2.28=9 q2.35 NR4Jin Min-subMen's pole vault5.5019Did not advance

Badminton

South Korea entered ten badminton players (three men and seven women) for the following events based on the BWF Race to Tokyo Rankings: two entries in the women's singles, one in the men's singles, two pairs in the women's doubles, and a pair each in the men's and mixed doubles.

Men Athlete Event Group stageMen's group stage results for Badminton:

Elimination QuarterfinalMen's quarterfinal results for Badminton: Semifinal Final / OppositionScore OppositionScore OppositionScore Rank OppositionScore OppositionScore OppositionScore OppositionScore Rank Heo Kwang-hee Singles W (21–10, 21–15) W (21–15, 21–19) 1 Q L (13–21, 18–21) Did not advance Choi Sol-gyuSeo Seung-jae Doubles L (22–24, 15–21) W (21–14, 21–8) L (22–24, 21–13, 18–21) 3 Did not advance

Women Athlete Event Group stageWomen's group stage results for Badminton:

EliminationWomen's elimination results for Badminton:

QuarterfinalWomen's quarterfinal results for Badminton:

SemifinalWomen's semifinal results for Badminton:

Final / Women's final results for Badminton: OppositionScore OppositionScore OppositionScore Rank OppositionScore OppositionScore OppositionScore OppositionScore Rank An Se-young Singles W (21–13, 21–8) W (21–3, 21–6) 1 Q W (21–15, 21–15) L (18–21, 19–21) Did not advance Kim Ga-eun W (21–14, 21–9) W (21–13, 21–14) 1 Q L (17–21, 18–21) Did not advance Kim So-yeongKong Hee-yong Doubles W (21–23, 21–12, 23–21) W (21–19, 24–22) L (21–19, 16–21, 14–21) 2 Q W (21–14, 14–21, 28–26) L (15–21, 11–21) W (21–10, 21–17) Lee So-heeShin Seung-chan W (21–9, 21–6) L (21–15, 19–21, 20–22) W (21–19, 21–12) 1 Q W (21–8, 21–17) L (19–21, 17–21) L (10–21, 17–21) 4

Mixed Athlete Event Group stageMixed's group stage results for Badminton:

QuarterfinalMixed's quarterfinal results for Badminton: Semifinal Final / OppositionScore OppositionScore OppositionScore Rank OppositionScore OppositionScore OppositionScore Rank Seo Seung-jaeChae Yoo-jung Doubles W (16–21, 21–15, 21–11) W (21–7, 21–3) L (14–21, 17–21) 2 Q L (9–21, 16–21) Did not advance

Baseball

South Korea national baseball team qualified for the Olympics by advancing to the final match and securing an outright berth as the highest-ranked squad from Asia and Oceania, excluding the host nation Japan, at the 2019 WBSC Premier12 in Tokyo.

Summary TeamEventGroup stageRound 1Round 2SemifinalSemifinal 2Final / OppositionResultOppositionResultRankOppositionResultOppositionResultOppositionResultOppositionResultOppositionResultRankSouth Korea men'sMen's tournamentW 6–5L 2–42 QW 4–3W 11–1L 2–5L 2–7L 6–104

Team roster

Group play

Round 1

Round 2

Semifinals

Bronze medal game

Basketball

Summary TeamEventGroup stage Quarterfinal SemifinalFinal / OppositionScore OppositionScore OppositionScore Rank OppositionScore OppositionScore OppositionScore Rank South Korea women's Women's tournament L 69–73 L 53–74 L 61–65 4 Did not advance

Women's tournament

South Korea women's basketball team qualified for the Olympics as one of three highest-ranked eligible squads from group B at the Belgrade meet of the 2020 FIBA Women's Olympic Qualifying Tournament, marking the country's recurrence to the sport for the first time in 12 years.

Team roster

Group play

Boxing

South Korea entered two female boxers for the first time into the Olympic tournament. Im Ae-ji (women's featherweight) and defending Asian Games champion Oh Yeon-ji (women's lightweight) secured the spots on the South Korean squad by advancing to the semifinal match of their respective weight divisions at the 2020 Asia & Oceania Qualification Tournament in Amman, Jordan.

Athlete Event Round of 32 Round of 16Round of 16 results for Boxing:

Quarterfinals Semifinals Final OppositionResult OppositionResult OppositionResult OppositionResult OppositionResult Rank Im Ae-ji Women's featherweight L 1–4 Did not advance Oh Yeon-ji Women's lightweight L 1–4 Did not advance

Canoeing

Sprint South Korea qualified a single boat (men's K-1 200 m) for the Games by winning the gold medal at the 2021 Asian Canoe Sprint Qualification Regatta in Pattaya, Thailand.

AthleteEventHeatsQuarterfinalsSemifinalsFinalTimeRankTimeRankTimeRankTimeRankCho Kwang-heeMen's K-1 200 m35.7383 QF35.0481 SF36.0946 FB36.44013 Qualification Legend: FA = Qualify to final (medal); FB = Qualify to final B (non-medal); SF = Qualify to semifinal; QF = Qualify to quarterfinal

Cycling

Road South Korea entered one rider to compete in the women's Olympic road race, by securing an outright berth, as the highest-ranked cyclist, not yet qualified, at the 2019 Asian Championships in Tashkent, Uzbekistan.

Athlete Event Time Rank Na Ah-reum Women's road race 4:01:08 38

Track Following the completion of the 2020 UCI Track Cycling World Championships, South Korea entered one rider to compete in the women's sprint and keirin based on her final individual UCI Olympic rankings.

Sprint Athlete Event Qualification Round 1 Repechage 1 Round 2 Repechage 2 Round 3 Repechage 3 Quarterfinals Semifinals Final TimeSpeed (km/h) Rank OppositionRank OppositionRank OppositionRank OppositionRank OppositionRank OppositionRank OppositionRank OppositionRank OppositionRank Rank Lee Hye-jin Women's sprint 10.90466.031 21 Q L L Did not advance

Keirin Athlete Event Round 1 Repechage Quarterfinals Semifinals Final Rank Rank Rank Rank Rank Lee Hye-jin Women's keirin 3 R 3 Did not advance

Diving

South Korean divers qualified for five individual spots and the men's synchronized springboard team at the Games through the 2019 FINA World Championships and the 2021 FINA Diving World Cup.

Athlete Event PreliminaryDiving preliminary results:

SemifinalDiving semifinal results:

FinalDiving final results:

Points Rank Points Rank Points Rank Kim Yeong-nam Men's 3 m springboard 286.80 28 Did not advance Kim Yeong-taek Men's 10 m platform 366.80 18 Q 374.90 15 Did not advanceWoo Ha-ram Men's 3 m springboard 452.45 5 Q 403.15 12 Q 481.85 4 Men's 10 m platform 427.25 7 Q 374.50 16 Did not advance Kim Yeong-namWoo Ha-ram Men's 10 m synchronized platform colspan="4" 396.12 7 Kim Su-ji Women's 3 m springboard 304.20 7 Q 283.90 15 Did not advance Kwon Ha-lim Women's 10 m platform 278.00 19 Did not advance

Equestrian

South Korea entered one dressage rider into the Olympic equestrian competition, by finishing in the top two, outside the group selection, of the individual FEI Olympic Rankings for Group G (South East Asia and Oceania).

Dressage Athlete Horse Event Grand PrixGrand Prix results for Equestrian: Grand Prix Freestyle Overall Score Rank Technical Artistic Score Rank Kim Dong-seon Belstaff Individual 63.447 55 Did not advance Qualification Legend: Q = Qualified for the final; q = Qualified for the final as a lucky loser

Fencing