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Squad of FC Seoul for K-League 1 2020
Hide players that have left or changed #
| # | | | | Player | | Height | |
Age | | | Position |
| 7 | |
| |
 Adriano, MJ
| | 1.70 | | 32 | | | FW Striker/Left-wing |
| 9 | |
| |
 Alibaev
| | 1.73 | | 26 | | | MF Box-to-Box midfielder/Right-midfield |
| 34 | |
| |
 Cho, SY
In 01jul | | 1.90 | | 23 | | | DF |
| 11 | |
| |
Cho, Young-wook
| | 1.78 | | 21 | | | FW Striker/Right-wing |
| 10 | |
 | |
CY Park
| | 1.82 | | 34 | | | FW Striker |
| 50 | |
| |
Dong-Jin Park
Out 24may | | 1.82 | | 25 | | | FW Striker/Right-back |
| 36 | |
| |
Gwon, SY
In 01jul | | | | 19 | | | FW |
| 66 | |
| |
Han Seung-gyu
| | 1.73 | | 23 | | | MF Box-to-Box midfielder/Left-midfield |
| 25 | |
| |
Han, Chan-Hee
| | 1.81 | | 23 | | | MF Box-to-Box midfielder |
| 24 | |
| |
HC Jung
| | 1.87 | | 27 | | | MF Defensive midfielder |
| 2 | |
| |
Hyun-soo Hwang
| | 1.83 | | 24 | | | DF Centre-back |
| 31 | |
| |
Jong-Beom Baek
| | 1.90 | | 19 | | | GK |
| 23 | |
| |
Jong-Gyu Yoon
| | 1.73 | | 22 | | | DF Right-back |
| 19 | |
| |
Ju-Tae Yun
| | 1.81 | | 29 | | | FW Striker/Either side wing |
| 37 | |
| |
Jung, HM
In 01jul | | 1.83 | | 19 | | | FW Left-wing |
| 14 | |
| |
Kim Han-gil
Out 30jun | | 1.77 | | 24 | | | MF Left-midfield/Right-midfield |
| 6 | |
| |
Kim Ju-sung
| | 1.86 | | 19 | | | DF Centre-back |
| 15 | |
| |
Kim Won-sik
| | 1.86 | | 28 | | | MF Defensive midfielder/Centre-back |
| 17 | |
| |
Kim, JY
| | 1.77 | | 21 | | | MF Either side midfield |
| 40 | |
| |
Kim, WG
| | 1.86 | | 28 | | | DF Centre-back |
| 27 | |
| |
Kwang-Min Ko
| | 1.72 | | 31 | | | MF Either side midfield/Either side back |
| 33 | |
| |
Lee, IG
| | 1.80 | | 20 | | | FW |
| 18 | |
| |
Lee, SJ
| | 1.83 | | 22 | | | FW |
| 4 | |
| |
Nam-choon Kim
| | 1.84 | | 31 | | | DF Centre-back |
| 20 | |
| |
Oh-Yeon Cha
| | | | 22 | | | MF |
| 5 | |
 | |
 Osmar
| | 1.92 | | 31 | | | MF Defensive midfielder/Centre-back |
| 72 | |
| |
 Pešić, A
Out 30jun | | 1.90 | | 27 | | | FW Striker |
| 28 | |
| |
Sang-Hee Kang
| | 1.80 | | 22 | | | DF Centre-back |
| 1 | |
| |
Sang-Hun Yu
| | 1.94 | | 30 | | | GK |
| 16 | |
| |
Se-Jong Ju
| | 1.76 | | 29 | | | MF Box-to-Box midfielder |
| 8 | |
 | |
SY Ki
In 20jul | | 1.87 | | 31 | | | MF Defensive midfielder |
| 21 | |
| |
Yang Han-bin
| | 1.94 | | 28 | | | GK |
| 13 | |
| |
Yo-Han Ko
(c) | | 1.70 | | 32 | | | MF Right-midfield/Attacking midfielder |
| 22 | |
| |
YS Yun
In 01jun | | 1.85 | | 31 | | | DF Centre-back |
| 35 | |
| |
Yu-Min Yang
| | 1.81 | | 20 | | | MF Left-midfield/Left-back |
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