# South Korea at the 2023 World Aquatics Championships

South Korea competed at the 2023 World Aquatics Championships in Fukuoka, Japan from 14 to 30 July.

## Medalists

| Medal | Name | Sport | Event | Date |
| Bronze | Hwang Sun-woo | Swimming | Men's 200 m freestyle | July 25 |

## Athletes by discipline

The following is the list of number of competitors participating at the Championships per discipline.
| Sport | Men | Women | Total |
| Artistic swimming | 1 | 3 | 4 |
| Diving | 3 | 5 | 8 |
| High diving | 1 | 0 | 1 |
| Open water swimming | 2 | 2 | 4 |
| Swimming | 14 | 7 | 21 |
| Total | 21 | 17 | 38 |

## Artistic swimming
### Women

| Athlete | Event | Preliminaries | Preliminaries | Final | Final |
| Athlete | Event | Points | Rank | Points | Rank |
| Lee Ri-young | Solo technical routine | 201.7866 | 8 Q | 200.8383 | 9 |
| Hur Yoon-seo | Solo free routine | 185.9500 | 4 Q | 186.6167 | 6 |
| Lee Ri-young Hur Yoon-seo | Duet technical routine | 204.8133 | 13 | Did not advance | Did not advance |
| Lee Ri-young Hur Yoon-seo | Duet free routine | 169.6645 | 13 | Did not advance | Did not advance |

### Mixed

| Athlete | Event | Preliminaries | Preliminaries | Final | Final |
| Athlete | Event | Points | Rank | Points | Rank |
| Byun Jae-jun Kim Ji-hye | Duet technical routine | 188.9558 | 6 Q | 190.2934 | 10 |
| Byun Jae-jun Kim Ji-hye | Duet free routine | 125.3708 | 11 Q | 125.1542 | 10 |

## Diving

South Korea entered 8 divers.

### Men

| Athlete | Event | Preliminaries | Preliminaries | Semifinals | Semifinals | Final | Final |
| Athlete | Event | Points | Rank | Points | Rank | Points | Rank |
| Kim Yeong-taek | 1 m springboard | 256.00 | 50 | — | — | Did not advance | Did not advance |
| Kim Yeong-taek | 10 m platform | 402.40 | 11 Q | 425.90 | 8 Q | 405.85 | 11 |
| Woo Ha-ram | 1 m springboard | 362.65 | 9 Q | — | — | 385.50 | 7 |
| Woo Ha-ram | 3 m springboard | 382.40 | 19 | Did not advance | Did not advance | Did not advance | Did not advance |
| Yi Jae-gyeong | 3 m springboard | 349.70 | 35 | Did not advance | Did not advance | Did not advance | Did not advance |
| Yi Jae-gyeong | 10 m platform | 377.40 | 17 Q | 396.55 | 14 | Did not advance | Did not advance |
| Woo Ha-ram Yi Jae-gyeong | 3 m synchro springboard | 331.62 | 18 | — | — | Did not advance | Did not advance |
| Kim Yeong-taek Yi Jae-gyeong | 10 m synchro platform | 348.78 | 12 Q | — | — | 347.88 | 10 |

### Women

| Athlete | Event | Preliminaries | Preliminaries | Semifinals | Semifinals | Final | Final |
| Athlete | Event | Points | Rank | Points | Rank | Points | Rank |
| Cho Eun-bi | 10 m platform | 240.50 | 30 | Did not advance | Did not advance | Did not advance | Did not advance |
| Kim Na-hyun | 1 m springboard | 234.40 | 14 | — | — | Did not advance | Did not advance |
| Kim Su-ji | 1 m springboard | 229.40 | 19 | — | — | Did not advance | Did not advance |
| Kim Su-ji | 3 m springboard | 285.05 | 11 Q | 283.60 | 16 | Did not advance | Did not advance |
| Moon Na-yun | 10 m platform | 257.55 | 23 | Did not advance | Did not advance | Did not advance | Did not advance |
| Park Ha-reum | 3 m springboard | 227.05 | 37 | Did not advance | Did not advance | Did not advance | Did not advance |
| Kim Su-ji Park Ha-reum | 3 m synchro springboard | 255.84 | 12 Q | — | — | 194.04 | 12 |
| Cho Eun-bi Moon Na-yun | 10 m synchro platform | 209.04 | 11 Q | — | — | 222.12 | 11 |

### Mixed

| Athlete | Event | Final | Final |
| Athlete | Event | Points | Rank |
| Yi Jae-gyeong Kim Su-ji | 3 m synchro springboard | 281.46 | 4 |
| Kim Yeong-taek Moon Na-yun | 10 m synchro platform | 256.50 | 9 |
| Kim Su-ji Yi Jae-gyeong Cho Eun-bi Kim Yeong-taek | Team event | 345.60 | 8 |

## High diving

| Athlete | Event | Points | Rank |
| Choi Byung-hwa | Men's high diving | 187.50 | 23 |

## Open water swimming

South Korea entered 4 open water swimmers.

### Men

| Athlete | Event | Time | Rank |
| Park Jae-hun | Men's 5 km | 57:49.5 | 34 |
| Park Jae-hun | Men's 10 km | 2:00:09.5 | 39 |
| Sung Jun-ho | Men's 5 km | 1:02:17.0 | 58 |
| Sung Jun-ho | Men's 10 km | 2:06:23.8 | 59 |

### Women

| Athlete | Event | Time | Rank |
| Lee Hae-rim | Women's 5 km | 1:02:33.9 | 39 |
| Lee Hae-rim | Women's 10 km | 2:12:43.0 | 42 |
| Lee Jeong-min | Women's 5 km | 1:02:30.1 | 38 |
| Lee Jeong-min | Women's 10 km | 2:13:41.0 | 47 |

### Mixed

| Athlete | Event | Time | Rank |
| Lee Hae-rim Lee Jeong-min Park Jae-hun Sung Jun-ho | Team relay | 1:19:28.7 | 18 |

## Swimming

South Korea entered 22 swimmers.

### Men

| Athlete | Event | Heat | Heat | Semifinal | Semifinal | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank |
| Baek In-chul | 50 metre butterfly | 23.50 | 23 | Did not advance | Did not advance | Did not advance | Did not advance |
| Cho Sung-jae | 200 metre breaststroke | 2:12.77 | 26 | Did not advance | Did not advance | Did not advance | Did not advance |
| Choi Dong-yeol | 50 metre breaststroke | 27.48 | 19 | Did not advance | Did not advance | Did not advance | Did not advance |
| Choi Dong-yeol | 100 metre breaststroke | 59.94 | 12 Q | 59.59 NR | 11 | Did not advance | Did not advance |
| Hwang Sun-woo | 100 metre freestyle | 48.20 | 12 Q | 48.08 | 9 | Did not advance | Did not advance |
| Hwang Sun-woo | 200 metre freestyle | 1:46.69 | 13 Q | 1:45.07 | 3 Q | 1:44.42 NR | |
| Ji Yu-chan | 50 metre freestyle | 22.17 | 24 | Did not advance | Did not advance | Did not advance | Did not advance |
| Kim Min-suk | 200 metre individual medley | 2:01.75 | 25 | Did not advance | Did not advance | Did not advance | Did not advance |
| Kim Min-suk | 400 metre individual medley | 4:22.17 | 21 | — | — | Did not advance | Did not advance |
| Kim Woo-min | 400 metre freestyle | 3:44.52 | 6 Q | — | — | 3:43.92 | 5 |
| Kim Woo-min | 800 metre freestyle | 7:47.69 NR | 14 | — | — | Did not advance | Did not advance |
| Kim Woo-min | 1500 metre freestyle | Did not start | Did not start | Did not start | Did not start | Did not start | Did not start |
| Kim Young-beom | 100 metre butterfly | 52.80 | 31 | Did not advance | Did not advance | Did not advance | Did not advance |
| Lee Ho-joon | 200 metre freestyle | 1:46.21 | 5 Q | 1:45.93 | 6 Q | 1:46.04 | 6 |
| Lee Ju-ho | 100 metre backstroke | 54.21 | 20 | Did not advance | Did not advance | Did not advance | Did not advance |
| Lee Ju-ho | 200 metre backstroke | 1:57.99 | 10 Q | 1:58.05 | 13 | Did not advance | Did not advance |
| Moon Seung-woo | 200 metre butterfly | 1:57.79 | 21 | Did not advance | Did not advance | Did not advance | Did not advance |
| Won Young-jun | 50 metre backstroke | 25.18 | 19 | Did not advance | Did not advance | Did not advance | Did not advance |
| Lee Ho-joon Ji Yu-chan Yang Jae-hoon Kim Ji-heun | 4 × 100 m freestyle relay | 3:16.15 | 17 | — | — | Did not advance | Did not advance |
| Hwang Sun-woo Kim Woo-min Yang Jae-hoon Lee Ho-joon | 4 × 200 m freestyle relay | 7:06.82 NR | 6 Q | — | — | 7:04.07 NR | 6 |
| Lee Ju-ho Choi Dong-yeol Kim Young-beom Hwang Sun-woo | 4 × 100 m medley relay | 3:34.25 NR | 10 | — | — | Did not advance | Did not advance |

### Women

| Athlete | Event | Heat | Heat | Semifinal | Semifinal | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank |
| Han Da-kyung | 400 metre freestyle | 4:11.08 | 18 | — | — | Did not advance | Did not advance |
| Han Da-kyung | 800 metre freestyle | 8:43.68 | 26 | — | — | Did not advance | Did not advance |
| Han Da-kyung | 1500 metre freestyle | 17:01.57 | 26 | — | — | Did not advance | Did not advance |
| Hur Yeon-kyung | 100 metre freestyle | 54.97 | 20 | Did not advance | Did not advance | Did not advance | Did not advance |
| Hur Yeon-kyung | 200 metre freestyle | 2:01.19 | 34 | Did not advance | Did not advance | Did not advance | Did not advance |
| Jeong So-eun | 50 metre freestyle | 25.45 | 26 | Did not advance | Did not advance | Did not advance | Did not advance |
| Kim Seo-yeong | 200 metre individual medley | 2:11.50 | 14 Q | 2:12.91 | 13 | Did not advance | Did not advance |
| Kim Seo-yeong | 400 metre individual medley | 4:45.04 | 19 | — | — | Did not advance | Did not advance |
| Kwon Se-hyun | 200 metre breaststroke | 2:27.93 | 23 | Did not advance | Did not advance | Did not advance | Did not advance |
| Lee Eun-ji | 50 metre backstroke | 28.40 | 19 | Did not advance | Did not advance | Did not advance | Did not advance |
| Lee Eun-ji | 100 metre backstroke | 1:00.56 | 18 | Did not advance | Did not advance | Did not advance | Did not advance |
| Lee Eun-ji | 200 metre backstroke | 2:11.78 | 14 Q | 2:13.65 | 16 | Did not advance | Did not advance |
| Park Su-jin | 100 metre butterfly | 1:00.20 | 28 | Did not advance | Did not advance | Did not advance | Did not advance |
| Park Su-jin | 200 metre butterfly | 2:11.20 | 18 | Did not advance | Did not advance | Did not advance | Did not advance |
| Kim Seo-yeong Hur Yeon-kyung Han Da-kyung Park Su-jin | 4 × 200 m freestyle relay | 8:05.40 | 15 | — | — | Did not advance | Did not advance |
| Lee Eun-ji Kwon Se-hyun Kim Seo-yeong Hur Yeon-kyung | 4 × 100 m medley relay | 4:05.16 | 18 | — | — | Did not advance | Did not advance |

### Mixed

| Athlete | Event | Heat | Heat | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank |
| Ji Yu-chan Yang Jae-hoon Hur Yeon-kyung Jeong So-eun | 4 × 100 m freestyle relay | 3:27.99 NR | 13 | Did not advance | Did not advance |
| Lee Eun-ji Choi Dong-yeol Kim Young-beom Hur Yeon-kyung | 4 × 100 m medley relay | 3:47.09 | 13 | Did not advance | Did not advance |