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Squad of South Korea for AFC U-23 Championship 2018
| # | | | | Player | | Height | |
Age | | | Position |
Team |
| 1 | |
| |
Kang, HM
| | 1.85 | | 22 | | | GK |  Pohang |
| 2 | |
| |
Park, JW
| | 1.77 | | 22 | | | DF Right-back/Centre-back | Daejeon |
| 3 | |
| |
Lee Geon
| | 1.80 | | 22 | | | MF Left-midfield/Left-back | |
| 4 | |
| |
Go, MS
| | 1.88 | | 22 | | | DF Centre-back | Daejeon |
| 5 | |
| |
Hyun-soo Hwang
| | 1.83 | | 22 | | | DF Centre-back | FC Seoul |
| 6 | |
| |
Hwang Ki-wook
| | 1.85 | | 21 | | | MF Defensive midfielder | FC Seoul |
| 7 | |
| |
Kim, Moon-hwan
| | 1.73 | | 22 | | | DF Right-back/Right-midfield | Busan |
| 8 | |
| |
Han Seung-gyu
| | 1.73 | | 21 | | | MF Box-to-Box midfielder/Left-midfield | Ulsan |
| 9 | |
| |
Lee, KH
| | 1.84 | | 21 | | | FW Striker/Either side wing | Pohang |
| 10 | |
| |
Yoon, SW
| | 1.86 | | 22 | | | FW Either side wing/Attacking midfielder | FC Seoul |
| 11 | |
| |
Cho, Young-wook
| | 1.78 | | 18 | | | FW Striker/Right-wing | FC Seoul |
| 12 | |
| |
Cho, Yu-min
| | 1.84 | | 21 | | | DF Centre-back/Defensive midfielder | Suwon |
| 13 | |
| |
Yoo, YJ
| | | | 21 | | | DF | |
| 14 | |
| |
Kim Gun-hee
| | 1.86 | | 22 | | | FW Striker/Right-wing | Bluewings |
| 15 | |
| |
Choe, JH
| | 1.75 | | 22 | | | MF Defensive midfielder | FC Anyang |
| 16 | |
| |
Yun-ho Jang
| | 1.78 | | 21 | | | MF Box-to-Box midfielder | Jeonbuk |
| 17 | |
| |
Cho, JW
| | 1.74 | | 22 | | | MF Left-midfield | Seoul EL |
| 18 | |
| |
In-Hyeok Park
| | 1.85 | | 22 | | | FW Right-wing |  Vojvodina |
| 19 | |
| |
Kuk, TJ
| | 1.78 | | 22 | | | DF Left-back | |
| 20 | |
| |
Jo, SW
| | 1.88 | | 22 | | | DF Centre-back | Seongnam |
| 21 | |
| |
Lee, TH
| | 1.88 | | 22 | | | GK | Incheon |
| 22 | |
| |
Lee, Sang-min (1998)
| | 1.88 | | 20 | | | DF Centre-back | Ulsan |
| 23 | |
| |
Song, Bum-keun
| | 1.94 | | 20 | | | GK | Jeonbuk |
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