South Korea participated in the 2018 Asian Games in Jakarta and Palembang, Indonesia from 18 August to 2 September 2018. It was the 18th appearance of the country at the Asian Games, except the first edition in Delhi. As one of the best competitors at the Games, South Korea's best achievement was in the 2002 Busan, with the acquisition of 96 gold, 80 silver and 84 bronze medals. At the latest edition in 2014 Incheon, the country had collected 79 gold, 71 silver, and 84 bronze medals.
South Korea sent 779 athletes across 39 sports to compete in Jakarta and Palembang. Korean Sport & Olympic Committee (KOC) is aiming to finish second for the sixth consecutive Asian Games with 65 gold medals, fewer than the Incheon Asian Games four years ago. South Korea marched along with North Korea under the Korean Unification Flag at the opening ceremony, and have together fielded unified Korean teams in women's basketball, rowing and canoeing.
Medalists
The following South Korean competitors won medals at the Games. In the by discipline sections below, medalists' names are bolded.
Demonstration events
Competitors
The following is a list of the number of competitors representing South Korea that participated at the Games:
Demonstration events
Archery
Recurve
* Oh Jin-hyek and Kang Chae-young took part in the ranking round.
Compound
** Did not play. *** Choi Yong-hee and So Chae-won took part in the ranking round.
Artistic swimming
FR: Reserved in free routine; RR: Reserved in technical and free routines; TR: Reserved in technical routine.
Athletics
Track
* Did not play.
Road
Field
Combined
Badminton
Men
Women
Mixed
Baseball
The following is the South Korea roster for the men's baseball tournament of the 2018 Asian Games. The team of 24 players was officially named on 11 June 2018.
Round 2 – Group B
Super round
Final
Basketball
5x5 basketball
As the defending champion, South Korea men's team drawn in the group A at the competition.
Men's tournament
Roster
The following is the South Korea roster in the men's basketball tournament of the 2018 Asian Games.
Group A
Quarterfinal
Semifinal
Bronze medal match
3x3 basketball
South Korea also set a men's and women's team that competed in the 3-on-3 basketball. The men's team placed in the pool B, and the women's team in the pool D based on the FIBA 3x3 federation ranking.
Men's tournament
Roster
Korea Basketball Association (KBA) selected four athletes for the men's 3x3 basketball tournament of the 2018 Asian Games. An Young-jun Yang Hong-seok Kim Nak-hyeon Park In-tae
Pool B
Quarterfinal
Semifinal
Final
Women's tournament
Roster
The following is the South Korea roster in the women's 3x3 basketball tournament of the 2018 Asian Games. Choi Gyu-hee Kim Jin-yeong Park Ji-eun Kim Jin-hee
Pool D
Quarterfinal
Bowling
Men
Women
Boxing
Men
Women
Canoeing
Slalom
Sprint
Qualification legend: QF=Final; QS=Semifinal
Cycling
BMX
Mountain biking
Road
Track
Sprint
Team sprint
Riders who participated in the heats only and received medals. Riders who entered the competition but did not participating in any phase of the team event. Qualification legend: FA=Gold medal final; FB=Bronze medal final
Pursuit
Riders who participated in the heats only and received medals. Riders who entered the competition but did not participating in any phase of the team event. Qualification legend: FA=Gold medal final; FB=Bronze medal final
Keirin
Qualification legend: FA=Gold medal final; FB=Bronze medal final
Omnium
Madison
Diving
Men
Women
Equestrian
Dressage
Eventing
Jumping
– indicates that the score of this rider does not count in the team competition, since only the best three results of a team are counted.
Esports (demonstration)
StarCraft II
League of Legends
Fencing
Individual
Team
Field hockey
Men's tournament
Team roster
Pool A
5th place match
Women's tournament
Team roster
Pool B
Semifinal
Bronze medal match
Football
South Korea men's team were drawn in Group E at the Games, while the women's team in Group A.