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Squad of South Korea for World Cup U-20 2019
| # | | | | Player | | Height | |
Age | | | Position |
Team |
| 1 | |
| |
Lee, GY
| | 1.84 | | 19 | | | GK |  Gangwon |
| 2 | |
| |
Tae-Hyeon Hwang
| | 1.80 | | 20 | | | DF Right-back | |
| 3 | |
| |
Lee JI
| | 1.85 | | 20 | | | DF Centre-back | Gangwon |
| 4 | |
| |
Lee JS
| | | | 19 | | | DF Centre-back | Daejeon |
| 5 | |
| |
Kim, HW
| | 1.83 | | 20 | | | DF Centre-back/Defensive midfielder |  Dinamo II |
| 6 | |
| |
Jung-Min Kim
| | 1.84 | | 19 | | | MF Box-to-Box midfielder |  Salzburg |
| 7 | |
| |
Jeon, SJ
| | 1.82 | | 19 | | | FW Left-wing | Bluewings |
| 8 | |
| |
Lee KH
| | 1.75 | | 20 | | | DF Left-back | |
| 9 | |
 | |
Oh, Se-hun
| | 1.93 | | 20 | | | FW Striker | Ulsan |
| 10 | |
 | |
Lee, Kang-in
| | 1.73 | | 18 | | | MF Attacking midfielder/Either side wing |  Valencia |
| 11 | |
| |
Um, Won-sang
| | 1.73 | | 20 | | | FW Right-wing | Gwangju |
| 12 | |
| |
Park JM
| | | | 18 | | | GK | Bluewings |
| 13 | |
| |
Go JH
| | 1.80 | | 20 | | | MF Attacking midfielder/Right-midfield | Daegu FC |
| 14 | |
| |
Park, TJ
| | 1.75 | | 20 | | | MF Box-to-Box midfielder | Seongnam |
| 15 | |
| |
Jeong HJ
| | 1.80 | | 19 | | | MF Defensive midfielder/Right-back | |
| 16 | |
| |
Kim Ju-sung
| | 1.86 | | 18 | | | DF Centre-back | FC Seoul |
| 17 | |
| |
Lee Sang-jun
| | 1.70 | | 19 | | | DF Right-back/Left-back | Busan |
| 18 | |
| |
Cho, Young-wook
| | 1.78 | | 20 | | | FW Striker/Right-wing | FC Seoul |
| 19 | |
| |
Choi, Jun
| | 1.74 | | 20 | | | DF Either side back/Right-wing | |
| 20 | |
| |
Kim, SY
| | 1.74 | | 20 | | | FW | |
| 21 | |
| |
Choi, Min-soo
| | 1.87 | | 19 | | | GK | |
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