South Korea at the 2018 Winter Olympics
competed at the 2018 Winter Olympics in Pyeongchang, from 9 to 25 February 2018, as the host nation. It was represented by 122 competitors in all 15 disciplines.
In January 2018, following inter-governmental talks, the teams representing South Korea and North Korea entered the Opening Ceremony marching under the Korean Unification Flag, while in women's ice hockey there was a single united Korean team.
South Korea won a total of seventeen medals – five gold, eight silver and four bronze – making these Games the most successful in South Korea's history in terms of total medals won, and earning the country 7th place in the overall medal table. Thirteen of the medals were won in long-track and short-track speed skating events. For the first time in their history, South Korean athletes also won medals in sliding sports, in a team event and in a snow event.
Medalists
The following South Korean competitors won medals at the Games. In the by discipline sections below, medalists' names are bolded.| Medal | Name | Sport | Event | Date |
| Short track speed skating | Men's 1500 metres | |||
| Skeleton | Men's | |||
| Short track speed skating | Women's 1500 metres | |||
| Choi Min-jeong Kim A-lang Kim Ye-jin Lee Yu-bin Shim Suk-hee | Short track speed skating | Women's 3000 metre relay | ||
| Speed skating | Men's mass start | |||
| Speed skating | Women's 500 metres | |||
| Speed skating | Men's 500 metres | |||
| Speed skating | Men's team pursuit | |||
| Short track speed skating | Men's 500 metres | |||
| Snowboarding | Men's parallel giant slalom | |||
| Speed skating | Women's mass start | |||
| Curling | Women's tournament | |||
| Bobsleigh | Four-man | |||
| Speed skating | Men's 1500 metres | |||
| Short track speed skating | Men's 1000 metres | |||
| Short track speed skating | Men's 500 metres | |||
| Speed skating | Men's 1000 metres |
Records
| Sport | Event | Date | Round | Athlete | Time | Record | Ref |
| Short track speed skating | Men's 1500 metres | 10 February | Final A | Lim Hyo-jun | 2:10.485 | OR | |
| Short track speed skating | Men's 5000 metre relay | 13 February | Semifinal 2 | Hwang Dae-heon Kim Do-kyoum Kwak Yoon-gy Lim Hyo-jun | 6:34.510 | OR | |
| Short track speed skating | Women's 500 metres | 10 February | Heat 8 | Choi Min-jeong | 42.870 | OR | |
| Short track speed skating | Women's 500 metres | 13 February | Semifinal 1 | Choi Min-jeong | 42.422 | OR |
Competitors
The following is the list of number of competitors participating at the Games per sport/discipline.| Sport | Men | Women | Total |
| Alpine skiing | 2 | 2 | 4 |
| Biathlon | 1 | 5 | 6 |
| Bobsleigh | 4 | 2 | 6 |
| Cross-country skiing | 2 | 2 | 4 |
| Curling | 6 | 6 | 12 |
| Figure skating | 3 | 4 | 7 |
| Freestyle skiing | 4 | 5 | 9 |
| Ice hockey | 25 | 0$ | 48 |
| Luge | 3 | 2 | 5 |
| Nordic combined | 1 | 0 | 1 |
| Short track speed skating | 5 | 5 | 10 |
| Skeleton | 2 | 1 | 3 |
| Ski jumping | 4 | 1 | 5 |
| Snowboarding | 7 | 3 | 10 |
| Speed skating | 9 | 7 | 16 |
| Total | 78 | 45 | 123 |
$ Additionally, 23 athletes of the women's ice hockey team formed part of a unified Korea women's team which competed under a different country code.
Alpine skiing
South Korea qualified a total of two male and two female athletes for alpine skiing.;Mixed
Biathlon
Based on their Nations Cup ranking in the 2016–17 Biathlon World Cup, South Korea qualified five women and received one men spot.| Athlete | Event | Time | Misses | Rank |
| Timofey Lapshin | Men's sprint | 24:22.6 | 1 | 16 |
| Timofey Lapshin | Men's pursuit | 35:50.7 | 4 | 22 |
| Timofey Lapshin | Men's individual | 50:28.6 | 1 | 20 |
| Timofey Lapshin | Men's mass start | 38:07.4 | 1 | 25 |
| Ekaterina Avvakumova | Women's sprint | 26:24.9 | 6 | 87 |
| Ekaterina Avvakumova | Women's individual | 44:25.3 | 1 | 16 |
| Anna Frolina | Women's sprint | 22:56.9 | 3 | 32 |
| Anna Frolina | Women's pursuit | 36:14.2 | 8 | 50 |
| Anna Frolina | Women's individual | 47:50.4 | 5 | 61 |
| Jung Ju-mi | Women's individual | 53:32.8 | 6 | 78 |
| Ko Eun-jung | Women's sprint | 25:12.1 | 2 | 78 |
| Mun Ji-hee | Women's sprint | 25:26.6 | 6 | 82 |
| Mun Ji-hee | Women's individual | 50:21.5 | 7 | 78 |
| Ekaterina Avvakumova Anna Frolina Ko Eun-jung Mun Ji-hee | Women's team relay | 1:20:20.6 | 22 | 18 |
Bobsleigh
Based on their rankings in the 2017–18 Bobsleigh World Cup, South Korea qualified three sleds.Cross-country skiing
South Korea qualified a total of two male and two female athletes for cross-country skiing.;Distance
;Sprint
Curling
South Korea qualified their men's team, their women's team, and their mixed doubles team.;Summary
Men's tournament
South Korea qualified a men's team as the host country.;Round-robin
South Korea had a bye in draws 3, 7 and 11.
;Draw 1
Wednesday, 14 February, 09:05
;Draw 2
Wednesday, 14 February, 20:05
;Draw 4
Friday, 16 February, 09:05
;Draw 5
Friday, 16 February, 20:05
;Draw 6
Saturday, 17 February, 14:05
;Draw 8
Sunday, 18 February, 20:05
;Draw 9
Monday, 19 February, 14:05
;Draw 10
Tuesday, 20 February, 09:05
;Draw 12
Wednesday, 21 February, 14:05
Women's tournament
South Korea qualified a women's team as the host country.;Round-robin
South Korea had a bye in draws 1, 5 and 9.
;Draw 2
Thursday, 15 February, 09:05
;Draw 3
Thursday, 15 February, 20:05
;Draw 4
Friday, 16 February, 14:05
;Draw 6
Saturday, 17 February, 20:05
;Draw 7
Sunday, 18 February, 14:05
;Draw 8
Monday, 19 February, 09:05
;Draw 10
Tuesday, 20 February, 14:05
;Draw 11
Wednesday, 21 February, 09:05
;Draw 12
Wednesday, 21 February, 20:05
;Semifinal
Friday, 23 February, 20:05
;Gold Medal Game
Sunday, 25 February, 09:05
Mixed doubles
South Korea qualified a mixed doubles team as the host country.;Draw 1
Thursday, February 8, 9:05
;Draw 2
Thursday, February 8, 20:04
;Draw 3
Friday, February 9, 8:35
;Draw 4
Friday, February 9, 13:35
;Draw 5
Saturday, February 10, 9:05
;Draw 6
Saturday, February 10, 20:04
;Draw 7
Sunday, February 11, 9:05
Figure skating
South Korea qualified two female figure skaters, based on its placement at the 2017 World Figure Skating Championships in Helsinki, Finland. They additionally qualified one male figure skater as well as an entry in ice dancing through the 2017 CS Nebelhorn Trophy. As hosts, they were given a quota to compete in the pairs event.Team event
Freestyle skiing
;Aerials;Halfpipe
;Moguls
;Slopestyle
Ice hockey
;SummaryMen's tournament
qualified as the host.;Team roster
- Men's team event – 1 team of 25 players
----
----
;Qualification playoff
Women's tournament
qualified as the host. In January 2018, it was announced that the South Korean team would be amalgamated with a group of North Korean players to form a single Korean team in the tournament. In this team, at least three North Korean players were selected for each game.Luge
Based on the results from the World Cups during the 2017–18 Luge World Cup season, South Korea qualified four sleds.;Mixed team relay
Nordic combined
Short track speed skating
According to the ISU Special Olympic Qualification Rankings, South Korea qualified a full squad of five men and five women each.;Men
;Women
Key: AA – Advanced to medal round due to being impeded by another skater; ADV – Advanced due to being impeded by another skater; FA – Qualified to medal round; FB – Qualified to consolation round
Skeleton
Based on the world rankings, South Korea qualified three sleds.Ski jumping
Snowboarding
;Freestyle;Parallel
Speed skating
;Men;Women
;Mass start
;Team pursuit
** Did not play.