| Club: | FC Seoul |
| Season: | 2019 |
| Manager: | Choi Yong-soo |
| Chairman: | Huh Chang-soo |
| Stadium: | Seoul World Cup Stadium |
| League: | K League 1 |
| League Result: | 3rd |
| Cup1: | FA Cup |
| Cup1 Result: | Round of 32 |
| League Topscorer: | Park Chu-young (10 goals) |
| Season Topscorer: | Park Chu-young (12 goals) |
| Prevseason: | 2018 |
| Nextseason: | 2020 |
| Pattern La1: | _fcseoul18h |
| Pattern B1: | _fcseoul18h |
| Pattern Ra1: | _fcseoul18h |
| Pattern Sh1: | _fcseoul18h |
| Pattern So1: | _fcseoul18h |
| Leftarm1: | 000000 |
| Body1: | FF0000 |
| Rightarm1: | 000000 |
| Shorts1: | FFFFFF |
| Socks1: | FF0000 |
| Pattern La2: | _fcseoul19a |
| Pattern B2: | _fcseoul19a |
| Pattern Ra2: | _fcseoul19a |
| Pattern So2: | _fcseoul19a |
| Leftarm2: | FFFFFF |
| Body2: | FFFFFF |
| Rightarm2: | FFFFFF |
| Shorts2: | 000000 |
| Socks2: | FFFFFF |
The 2019 season was FC Seoul's 36th season in the K League 1.
| Type | Date | Opponents | Result | Score | Scorers | Notes |
|---|---|---|---|---|---|---|
| Practice matches during winter training spell in Kagoshima, Japan | 31 January 2019 |  Ventforet Kofu | 1–1 |  Jung Won-jin | ||
| 3 February 2019 | Jubilo Iwata | 1–1 | Lee In-gyu | Same day 2 matches | ||
| 0–0 | ||||||
| 6 February 2019 | Montedio Yamagata | 3–1 | Park Dong-jin (2), Go Yo-han | Same day 2 matches | ||
| Blaublitz Akita | 2–3 | Ha Dae-sung, Kim Won-sik | ||||
| 9 February 2019 | Shimizu S-Pulse | 0–0 | ||||
| 12 February 2019 | Sanfrecce Hiroshima | 1–1 | Go Yo-han | |||
| 14 February 2019 | Tegevajaro Miyazaki | 2–0 | Lee In-gyu, Kim Won-sik |
See main article: 2019 K League 1.
See main article: 2019 Korean FA Cup.
Fixtures and Results at FC Seoul Official Website
| Position | Name | Notes |
|---|---|---|
| Manager | Choi Yong-soo | |
| Assistant manager | Kim Seong-jae | |
| First Team Coach | Yoon Hee-jun | |
| Park Hyuk-soon | ||
| Reserve Team Coach | Jung Kwang-min | –June 2019 |
| Goalkeeping Coach | Back Min-chul | |
| Fitness Coach | Lee Jae-hong | |
| U-18 Team Manager | Myong Jin-young | |
| U-18 Team Coach | Kim Jin-kyu | |
| U-18 Team Goalkeeping Coach | Weon Jong-teok | |
| U-18 Team Fitness Coach | Hwang Ji-hwan | |
| U-15 Team Manager | Kim Young-jin | |
| U-15 Team Coach | Yoon Si-ho | |
| U-15 Team Goalkeeping Coach | Son Il-pyo | |
| U-15 Team Fitness Coach | Jung Hoon-gi | |
| U-12 Team Manager | Kim Byung-chae | |
| U-12 Team Coach | Seo Ki-man | |
| U-12 Team Goalkeeping Coach | Lee Ji-hun | |
| Chief Scout | Kim Hyun-tae | |
| Scout | Lee Won-jun | |
| Jung Jae-yoon | ||
All players registered for the 2019 season are listed.
| No. | Pos. | Nationality | Player | Notes |
|---|---|---|---|---|
| South Korea | Yu Sang-hun | |||
| South Korea | Hwang Hyun-soo | |||
| South Korea | Lee Woong-hee | |||
| South Korea | Kim Nam-chun | |||
| Spain | Osmar | |||
| South Korea | Kim Ju-sung | |||
| South Korea] | Shin Jae-won | |||
| South Korea | Jung Won-jin | |||
| Uzbekistan | Ikromjon Alibaev | |||
| South Korea | ||||
| South Korea | Go Yo-han (captain) | |||
| South Korea | Kim Han-gil | |||
| South Korea | Kim Won-sik | |||
| South Korea | Ha Dae-sung | |||
| South Korea | Park Hee-seong | |||
| South Korea | Cho Young-wook | |||
| South Korea | Yun Ju-tae | |||
| South Korea | Park Jun-yeong | |||
| South Korea | Yang Han-been | |||
| South Korea | Yoon Seung-won | |||
| South Korea | Yoon Jong-gyu | |||
| South Korea | ||||
| South Korea | Pak Min-gyu | Out | ||
| South Korea | Lee Seung-jae | |||
| South Korea | ko Kwang-min | |||
| South Korea | Hwang Ki-wook | |||
| South Korea | Jeong Jin-wook | |||
| South Korea | Baek Jong-bum | |||
| South Korea | Shin Seong-jae | |||
| South Korea | Lee In-gyu | |||
| South Korea | Lee Hak-seon | |||
| South Korea | Jun Woo-ram | |||
| South Korea | Park Sung-min | |||
| South Korea | Song Jin-hyung | |||
| South Korea | Jang Hee-woong | |||
| South Korea | Lee Gun-chul | |||
| South Korea | Kim Won-gun | |||
| South Korea | Koo Chang-mo | |||
| South Korea | Kim Woo-hong | |||
| South Korea | ||||
| South Korea | Discharged | |||
| Serbia | Aleksandar Pešić | |||
| South Korea | Discharged | |||
| No. | Pos. | Nationality | Player | Moving To | Loan Period | |
|---|---|---|---|---|---|---|
| South Korea | Ju Se-jong | Asan Mugunghwa | January 2018–October 2019 | |||
| South Korea | Lee Myung-joo | Asan Mugunghwa | January 2018–October 2019 | |||
| South Korea | Lee Kyu-ro | FC Pocheon | January 2018–December 2019 | |||
| South Korea | Kim Ju-yeong | Pocheon Citizen | January 2018–June 2020 | |||
| South Korea | Pak Min-gyu | Daejeon Citizen | July 2019–December 2019 |
Note: Where a player has not declared an international allegiance, nation is determined by place of birth.
※ In: Transferred from other teams in the middle of the season.
※ Out: Transferred to other teams in the middle of the season.
※ Discharged: Transferred from Sanjgu Sangmu or Ansan Mugunghwa for military service in the middle of the season (registered in 2019 season).
※ Conscripted: Transferred to Sangju Sangmu or Ansan Mugunghwa for military service after the end of the season.