# List of South Korean records in swimming

The South Korean records in swimming are the fastest ever performances of swimmers from South Korea, which are recognised and ratified by the Korea Swimming Federation.
All records were set in finals unless noted otherwise.

## Long Course (50 m)
### Men

| Event | Time | | Name | Club | Date | Meet | Location |
| 50m freestyle | 21.72 | | Ji Yu-chan | South Korea | 25 September 2023 | Asian Games | Hangzhou, China |
| 100m freestyle | 47.56 | sf | Hwang Sun-woo | South Korea | 28 July 2021 | Olympic Games | Tokyo, Japan |
| 200m freestyle | 1:44.40 | | Hwang Sun-woo | South Korea | 27 September 2023 | Asian Games | Hangzhou, China |
| 400m freestyle | 3:41.53 | | Park Tae-hwan | South Korea | 16 November 2010 | Asian Games | Guangzhou, China |
| 800m freestyle | 7:46.03 | | Kim Woo-min | South Korea | 28 September 2023 | Asian Games | Hangzhou, China |
| 1500m freestyle | 14:47.38 | | Park Tae-hwan | South Korea | 12 February 2012 | NSW State Open Championships | Sydney, Australia |
| 50m backstroke | 24.67 | | Yoon Ji-hwan | Gangwon Sports High School | 15 October 2024 | Korean National Sports Festival | Changwon, South Korea |
| 100m backstroke | 53.32 | | Lee Ju-ho | - | 27 March 2022 | South Korean Championships | Gimcheon, South Korea |
| 200m backstroke | 1:56.05 | | Lee Ju-ho | - | 24 November 2023 | Korean National Trials | Gimcheon, South Korea |
| 50m breaststroke | 26.93 | | Choi Dong-yeol | South Korea | 29 September 2023 | Asian Games | Hangzhou, China |
| 100m breaststroke | 59.28 | | Choi Dong-yeol | South Korea | 25 September 2023 | Asian Games | Hangzhou, China |
| 200m breaststroke | 2:08.59 | | Cho Sung-jae | - | 17 November 2020 | South Korean Championships | Gimcheon, South Korea |
| 50m butterfly | 23.15 | | Baek In-chul | - | 14 October 2023 | Korean National Sports Festival | Mokpo, South Korea |
| 100m butterfly | 51.65 | | Kim Young-beom | — | 13 June 2024 | Gwangju Championships | Gwangju, South Korea |
| 200m butterfly | 1:54.95 | | Kim Min-seop | — | 23 March 2024 | Korean Olympic Trials | Gimcheon, South Korea |
| 200m individual medley | 1:58.04 | | Hwang Sun-woo | — | 12 October 2021 | Korean National Sports Festival | Gimcheon, South Korea |
| 400m individual medley | 4:15.27 | | Kim Min-kyu | South Korea | 8 December 2009 | East Asian Games | Kowloon, Hong Kong |
| 4×50m freestyle relay | 1:31.99 | | Yang Jae-hoon (22.61)Jeon Ji-hoon (22.76)Jeon Ki-young (23.45)Song Im-gyu (23.17) | South Korea | 16 February 2020 | Konami Open | Tokyo, Japan |
| 4×100m freestyle relay | 3:12.96 | | Ji Yu-chan (48.90)Lee Ho-joon (47.79)Kim Ji-hun (48.66)Hwang Sun-woo (47.61) | South Korea | 28 September 2023 | Asian Games | Hangzhou, China |
| 4×200m freestyle relay | 7:01.73 | AS | Yang Jae-hoon (1:46.83)Lee Ho-joon (1:45.36)Kim Woo-min (1:44.50)Hwang Sun-woo (1:45.04) | South Korea | 25 September 2023 | Asian Games | Hangzhou, China |
| 4×50m medley relay | 1:39.63 | | Song Im-gyu (25.90)Choi Dong-yeol (28.05)Jeon Ji-hoon (23.55)Yang Jae-hoon (22.13) | South Korea | 15 February 2020 | Konami Open | Tokyo, Japan |
| 4×100m medley relay | 3:32.05 | | Lee Ju-ho (53.54)Choi Dong-yeol (59.12)Kim Young-beom (51.76)Hwang Sun-woo (47.63) | South Korea | 26 September 2023 | Asian Games | Hangzhou, China |

### Women

| Event | Time | | Name | Club | Date | Meet | Location |
| 50m freestyle | 24.97 | | Hur Yeon-kyung | - | 15 October 2023 | Korean National Sports Festival | Mokpo, South Korea |
| 100m freestyle | 54.49 | | Hur Yeon-kyung | - | 25 November 2023 | Korean National Trials | Gimcheon, South Korea |
| 200m freestyle | 1:58.41 | | Kim Seo-yeong | - | 3 March 2019 | Korean National Trials #1 | Gimcheon, South Korea |
| 400m freestyle | 4:10.89 | | Han Da-kyung | - | 25 March 2021 | South Korean Championships | Gimcheon, South Korea |
| 800m freestyle | 8:38.32 | | Han Da-kyung | - | 24 March 2024 | Korean Olympic Trials | Gimcheon, South Korea |
| 1500m freestyle | 16:26.67 | | Han Da-kyung | - | 13 May 2021 | Korean Olympic Trials | Jeju, South Korea |
| 50m backstroke | 27.84 | | Kim Seung-won | — | 25 May 2024 | Korean National Junior Sports Festival | Mokpo, South Korea |
| 100m backstroke | 1:00.03 | = | Lee Eun-ji | - | 16 May 2021 | Korean Olympic Trials | Jeju, South Korea |
| 100m backstroke | 1:00.03 | = | Lee Eun-ji | South Korea | 27 September 2023 | Asian Games | Hangzhou, China |
| 200m backstroke | 2:08.81 | | Lee Eun-ji | - | 12 October 2024 | Korean National Sports Festival | Changwon, South Korea |
| 50m breaststroke | 31.07 | | Kim Dal-Eun | — | 25 October 2009 | Korean National Sports Festival | Daejeon, South Korea |
| 100m breaststroke | 1:07.44 | | Kim Hye-jin | - | 27 April 2018 | South Korean Championships | Gwangju, South Korea |
| 200m breaststroke | 2:23.87 | | Moon Su-a | - | 14 October 2024 | Korean National Sports Festival | Changwon, South Korea |
| 50m butterfly | 26.26 | = | Jeong So-eun | South Korea | 2 November 2019 | World Cup | Kazan, Russia |
| 50m butterfly | 26.26 | = | Jeong So-eun | - | 21 July 2021 | President of National Championships | Ulsan, South Korea |
| 100m butterfly | 57.07 | | An Se-hyeon | South Korea | 24 July 2017 | World Championships | Budapest, Hungary |
| 200m butterfly | 2:06.67 | | An Se-hyeon | South Korea | 27 July 2017 | World Championships | Budapest, Hungary |
| 200m individual medley | 2:08.34 | | Kim Seo-yeong | South Korea | 24 August 2018 | Asian Games | Jakarta, Indonesia |
| 400m individual medley | 4:35.93 | | Kim Seo-yeong | - | 12 May 2017 | Korean World Trials | Gimcheon, South Korea |
| 4×50m freestyle relay | 1:45.39 | | Kim Seo-yeong (26.22)Jung You-in (25.43)Choi Ji-won (26.58)Han Chan-mi (27.16) | South Korea | 14 December 2019 | Queensland Championships | Brisbane, Australia |
| 4×100m freestyle relay | 3:42.58 | h | Lee Ku-na (55.80)Jeong So-eun (55.22)Choi Ji-won (55.97)Jung You-in (55.59) | South Korea | 21 July 2019 | World Championships | Gwangju, South Korea |
| 4×200m freestyle relay | 8:00.11 | | Kim Seo-yeong (1:59.43)Hur Yeon-kyung (1:58.64)Park Su-jin (2:01.32)Han Da-kyung (2:00.72) | South Korea | 28 September 2023 | Asian Games | Hangzhou, China |
| 4×50m medley relay | 1:56.43 | | Han Chan-mi (30.25)Kim Seo-yeong (32.40)Jung You-in (27.32)Choi Ji-won (26.46) | South Korea | 14 December 2019 | Queensland Championships | Brisbane, Australia |
| 4×100m medley relay | 4:00.13 | | Lee Eun-ji (1:00.68)Ko Ha-ru (1:08.42)Kim Seo-yeong (57.41)Hur Yeon-kyung (53.62) | South Korea | 29 September 2023 | Asian Games | Hangzhou, China |

### Mixed relay

| Event | Time | | Name | Club | Date | Meet | Location | Ref |
| 4×100 m freestyle relay | 3:27.99 | h | Ji Yu-chan (49.11)Yang Jae-hoon (49.17)Hur Yeon-kyung (54.43)Jeong So-eun (55.28) | South Korea | 29 July 2023 | World Championships | Fukuoka, Japan | |
| 4×100 m medley relay | 3:46.78 | | Lee Eun-ji (1:01.37)Choi Dong-yeol (59.69)Kim Seo-yeong (57.39)Hwang Sun-woo (48.33) | South Korea | 27 September 2023 | Asian Games | Hangzhou, China | |

## Short Course (25 m)
### Men

| Event | Time | | Name | Club | Date | Meet | Location |
| 50m freestyle | 20.80 | =, AS | Ji Yu-chan | South Korea | 24 October 2024 | World Cup | Incheon, South Korea |
| 50m freestyle | 20.80 | =, sf, AS | Ji Yu-chan | South Korea | 14 December 2024 | World Championships | Budapest, Hungary |
| 100m freestyle | 46.34 | | Hwang Sun-woo | South Korea | 21 December 2021 | World Championships | Abu Dhabi, United Arab Emirates |
| 200m freestyle | 1:39.72 | AS | Hwang Sun-woo | South Korea | 18 December 2022 | World Championships | Melbourne, Australia |
| 400m freestyle | 3:34.59 | AS | Park Tae-hwan | South Korea | 6 December 2016 | World Championships | Windsor, Canada |
| 800m freestyle | 7:37.01 | †, AS | Park Tae-hwan | South Korea | 11 December 2016 | World Championships | Windsor, Canada |
| 1500m freestyle | 14:15.51 | AS | Park Tae-hwan | South Korea | 11 December 2016 | World Championships | Windsor, Canada |
| 50m backstroke | 23.22 | | Jeong Dong-won | South Korea | 23 September 2017 | Asian Indoor and Martial Arts Games | Ashgabat, Turkmenistan |
| 100m backstroke | 50.96 | h | Song Im-gyu | South Korea | 26 October 2024 | World Cup | Incheon, South Korea |
| 200m backstroke | 1:52.85 | | Lee Ju-ho | South Korea | 31 October 2024 | World Cup | Singapore, Singapore |
| 50m breaststroke | 26.05 | | Choi Dong-yeol | South Korea | 25 October 2024 | World Cup | Incheon, South Korea |
| 100m breaststroke | 56.74 | | Choi Dong-yeol | South Korea | 24 October 2024 | World Cup | Incheon, South Korea |
| 200m breaststroke | 2:04.78 | h | Cho Sung-jae | South Korea | 13 December 2024 | World Championships | Budapest, Hungary |
| 50m butterfly | 22.60 | | Ji Yu-chan | South Korea | 26 October 2024 | World Cup | Incheon, South Korea |
| 100m butterfly | 50.34 | h | Kim Young-beom | South Korea | 24 October 2024 | World Cup | Incheon, South Korea |
| 200m butterfly | 1:53.75 | | Moon Seung-woo | South Korea | 25 October 2024 | World Cup | Incheon, South Korea |
| 100m individual medley | 52.00 | | Kim Ji-hun | South Korea | 24 October 2024 | World Cup | Incheon, South Korea |
| 200m individual medley | 1:55.96 | | Kim Min-suk | South Korea | 1 November 2024 | World Cup | Singapore, Singapore |
| 400m individual medley | 4:14.02 | | Han Kyu-chul | South Korea | 24 November 2003 | World Cup | Daejon, South Korea |
| 4×50m freestyle relay | 1:28.56 | h | Hwang Sun-woo (21.72)Kim Woo-min (22.21)Won Young-jun (22.20)Lee Ho-joon (22.43) | South Korea | 19 December 2021 | World Championships | Abu Dhabi, United Arab Emirates |
| 4×100m freestyle relay | 3:16.48 | h | Won Young-jun (48.87)Moon Seung-woo (49.77)Kim Woo-min (48.78)Lee Ho-joon (49.06) | South Korea | 16 December 2021 | World Championships | Abu Dhabi, United Arab Emirates |
| 4×200m freestyle relay | 6:49.67 | | Hwang Sun-woo (1:40.99)Kim Woo-min (1:42.03)Lee Ho-joon (1:42.92)Yang Jae-hoon (1:43.73) | South Korea | 16 December 2022 | World Championships | Melbourne, Australia |
| 4×50m medley relay | 1:35.28 | | Jeong Dong-won (23.45)Moon Jae-kwon (26.42)Jeon Sung-min (23.04)Jang Dong-hyeok (22.37) | South Korea | 22 September 2017 | Asian Indoor and Martial Arts Games | Ashgabat, Turkmenistan |
| 4×100m medley relay | 3:29.36 | h | Lee Ju-ho (52.39)Choi Dong-yeol (57.51)Kim Ji-hun (51.30)Lee Ho-joon (48.16) | South Korea | 15 December 2024 | World Championships | Budapest, Hungary |

### Women

| Event | Time | | Name | Club | Date | Meet | Location |
| 50m freestyle | 24.37 | | Hur Yeon-kyung | South Korea | 24 October 2024 | World Cup | Incheon, South Korea |
| 100m freestyle | 54.06 | | Jeong So-eun | South Korea | 23 October 2021 | World Cup | Doha, Qatar |
| 200m freestyle | 1:56.38 | | Jo Hyun-ju | South Korea | 25 October 2024 | World Cup | Incheon, South Korea |
| 400m freestyle | 4:05.90 | | Han Da-kyung | South Korea | 21 October 2021 | World Cup | Doha, Qatar |
| 800m freestyle | 8:24.06 | | Han Da-kyung | South Korea | 23 October 2021 | World Cup | Doha, Qatar |
| 1500m freestyle | 16:43.29 | | Kim Chae-yun | South Korea | 25 October 2024 | World Cup | Incheon, South Korea |
| 50m backstroke | 26.67 | rh, = | Kim San-ha | South Korea | 17 December 2022 | World Championships | Melbourne, Australia |
| 50m backstroke | 26.67 | = | Kim Seung-won | South Korea | 24 October 2024 | World Cup | Incheon, South Korea |
| 100m backstroke | 58.01 | rh | Kim San-ha | South Korea | 18 December 2022 | World Championships | Melbourne, Australia |
| 200m backstroke | 2:08.51 | | Lee Yun-jung | South Korea | 26 October 2024 | World Cup | Incheon, South Korea |
| 50m breaststroke | 30.35 | | Park Si-eun | South Korea | 26 October 2024 | World Cup | Incheon, South Korea |
| 100m breaststroke | 1:05.36 | h | Park Si-eun | South Korea | 11 December 2024 | World Championships | Budapest, Hungary |
| 200m breaststroke | 2:19.58 | | Park Si-eun | South Korea | 24 October 2024 | World Cup | Incheon, South Korea |
| 50m butterfly | 25.61 | | Jeong So-eun | South Korea | 22 October 2021 | World Cup | Doha, Qatar |
| 100m butterfly | 56.87 | | Kim Seo-yeong | South Korea | 26 October 2024 | World Cup | Incheon, South Korea |
| 200m butterfly | 2:03.65 | | Choi Hye-ra | South Korea | 9 November 2011 | World Cup | Beijing, China |
| 100m individual medley | 59.39 | | Kim Seo-yeong | South Korea | 24 October 2024 | World Cup | Incheon, South Korea |
| 200m individual medley | 2:06.12 | | Kim Seo-yeong | South Korea | 18 November 2017 | World Cup | Singapore, Singapore |
| 400m individual medley | 4:28.11 | | Kim Seo-yeong | South Korea | 19 November 2017 | World Cup | Singapore, Singapore |
| 4×50m freestyle relay | 1:42.83 | | Kim Go-eun (26.31)Park Jin-youngKim Ji-heunHwang Seo-jin | South Korea | 2 July 2013 | Asian Indoor and Martial Arts Games | Incheon, South Korea |
| 4×100m freestyle relay | 3:40.40 | h | Jeong So-eun (54.19)Ryu Ji-won (55.67)Han Da-kyung (56.78)Kim Seo-yeong (53.76) | South Korea | 16 December 2021 | World Championships | Abu Dhabi, United Arab Emirates |
| 4×200m freestyle relay | 8:11.15 | h | Lee Keo-ra (2:00.16)Lee Ji-eun (2:02.33)Jung Ji-yeon (2:04.99)Shim Min-ji (2:03.67) | South Korea | 5 April 2006 | World Championships | Shanghai, China |
| 4×50m medley relay | 1:48.24 | h | Kim San-ha (26.67)Moon Su-a (31.18)Kim Seo-yeong (25.83)Hur Yeon-kyung (24.56) | South Korea | 17 December 2022 | World Championships | Melbourne, Australia |
| 4×100m medley relay | 3:56.66 | h | Kim San-ha (58.01)Moon Su-a (1:06.87)Kim Seo-yeong (57.79)Hur Yeon-kyung (53.99) | South Korea | 18 December 2022 | World Championships | Melbourne, Australia |

### Mixed relay

| Event | Time | | Name | Club | Date | Meet | Location | Ref |
| 4×50m freestyle relay | 1:32.17 | h | Kim ji-hun (21.66)Ji Yu-chan (20.90)Jeong So-eun (25.09)Hur Yeon-kyung (24.52) | South Korea | 13 December 2024 | World Championships | Budapest, Hungary | |
| 4×50m medley relay | 1:40.12 | h | Kim Seung-won (27.40)Choi Dong-yeol (26.03)Jeong So-eun (26.31)Ji Yu-chan (20.38) | South Korea | 11 December 2024 | World Championships | Budapest, Hungary | |