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Squad of South Korea for AFC U-23 Championship 2020
| # | | | | Player | | Height | |
Age | | | Position |
Team |
| 21 | |
| |
An, CG
| | | | 21 | | | GK | |
| 9 | |
 | |
Cho, Gue-sung
| | 1.88 | | 21 | | | FW Striker |  Jeonbuk |
| 12 | |
| |
Jae-Woo Kim
| | 1.90 | | 21 | | | DF Centre-back/Right-back | Daegu FC |
| 16 | |
| |
Jeong, SW
| | 1.70 | | 22 | | | MF Attacking midfielder/Right-wing | Daegu FC |
| 5 | |
| |
Jeong, Tae-wook
| | 1.94 | | 22 | | | DF Centre-back | Daegu FC |
| 7 | |
 | |
Jeong, Woo-yeong
| | 1.79 | | 20 | | | MF Attacking midfielder/Either side wing |  Bayern II |
| 22 | |
| |
Jong-Gyu Yoon
| | 1.73 | | 21 | | | DF Right-back | FC Seoul |
| 23 | |
| |
Joon-Soo Ahn
| | 1.88 | | 21 | | | GK |  C Osaka |
| 3 | |
| |
Kang, YS
| | 1.84 | | 22 | | | DF Either side back/Defensive midfielder | Jeju Utd |
| 6 | |
| |
Kim, Dong-hyun
| | 1.82 | | 22 | | | MF Defensive midfielder | Seongnam |
| 14 | |
| |
Kim, DW
| | 1.72 | | 22 | | | FW Striker/Left-wing | Daegu FC |
| 8 | |
| |
Kim, JK
| | 1.77 | | 22 | | | MF Box-to-Box midfielder/Right-midfield | Busan |
| 13 | |
| |
Kim, JY
| | 1.77 | | 21 | | | MF Either side midfield | FC Seoul |
| 15 | |
| |
Kim, Tae-hyeon
| | 1.87 | | 19 | | | DF | Ulsan |
| 11 | |
| |
Lee, DJ
| | 1.73 | | 22 | | | FW Right-wing | Busan |
| 10 | |
| |
Lee, DK
| | 1.75 | | 22 | | | MF Attacking midfielder/Right-midfield | Ulsan |
| 4 | |
| |
Lee, Sang-min (1998)
| | 1.88 | | 22 | | | DF Centre-back | Seoul EL |
| 2 | |
| |
Lee, You-hyeon
| | | | 22 | | | DF Right-back | Jeonnam |
| 19 | |
| |
Maeng, SU
| | 1.83 | | 21 | | | MF Defensive midfielder | FC Anyang |
| 18 | |
 | |
Oh, Se-hun
| | 1.93 | | 20 | | | FW Striker | Sangmu |
| 1 | |
| |
Song, Bum-keun
| | 1.94 | | 22 | | | GK | Jeonbuk |
| 17 | |
| |
Um, Won-sang
| | 1.73 | | 21 | | | FW Right-wing | Gwangju |
| 20 | |
| |
Won, DJ
| | 1.87 | | 22 | | | MF Defensive midfielder/Centre-back | Ulsan |
| Coach | | From Mar-18 | To Sep-21 | | HB Kim ( U-23 ) |
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