Transfers
Recent player movements in and out of the squad
| Date | Player | From | To | Type |
|---|---|---|---|---|
| 21.07.2021 | D. Drexler | 1. FC Köln | FC Schalke 04 | Free |
| 16.07.2021 | S. Bornauw | 1. FC Köln | VfL Wolfsburg | € 13.5M |
| 12.07.2021 | I. Jakobs | 1. FC Köln | Monaco | € 6.5M |
| 08.07.2021 | M. Risse | 1. FC Köln | — | N/A |
| 03.07.2021 | L. Sobiech | 1. FC Köln | SV Darmstadt 98 | Free |
| 01.07.2021 | J. Krahl | 1. FC Köln | — | Free |
| 01.07.2021 | B. Verstraete | 1. FC Köln | Antwerp | N/A |
| 01.07.2021 | R. Voloder | 1. FC Köln | — | Loan |
| 01.07.2021 | Y. Bisseck | 1. FC Köln | Aarhus | Loan |
| 01.07.2021 | E. Rexhbeçaj | 1. FC Köln | VfL Wolfsburg | N/A |
| 01.07.2021 | R. Zieler | 1. FC Köln | — | N/A |
| 30.06.2021 | M. Wolf | 1. FC Köln | Borussia Dortmund | N/A |
| 01.02.2021 | A. Modeste | 1. FC Köln | Saint Etienne | Loan |
| 20.01.2021 | F. Sørensen | 1. FC Köln | — | N/A |
| 15.01.2021 | C. Clemens | 1. FC Köln | SV Darmstadt 98 | N/A |
| 16.09.2020 | L. Schaub | 1. FC Köln | FC Luzern | Loan |
| 15.09.2020 | J. Córdoba | 1. FC Köln | Hertha BSC | € 15M |
| 20.08.2020 | S. Terodde | 1. FC Köln | Hamburger SV | Free |
| 11.08.2020 | V. Koziello | 1. FC Köln | Nacional | Loan |
| 07.08.2020 | T. Ostrák | 1. FC Köln | Karviná | Loan |
| 06.08.2020 | K. Schindler | 1. FC Köln | — | Loan |
| 03.08.2020 | Y. Bisseck | 1. FC Köln | Guimaraes | Loan |
| 18.07.2020 | M. Risse | 1. FC Köln | — | Loan |
| 15.07.2020 | J. Bartels | 1. FC Köln | — | N/A |
| 01.07.2020 | M. Uth | 1. FC Köln | FC Schalke 04 | N/A |
| 01.07.2020 | N. Hauptmann | 1. FC Köln | Holstein Kiel | Loan |
| 01.07.2020 | B. Verstraete | 1. FC Köln | Antwerp | Loan |
| 31.01.2020 | M. Bader | 1. FC Köln | SV Darmstadt 98 | N/A |
| 31.01.2020 | V. Koziello | 1. FC Köln | Paris FC | Loan |
| 30.01.2020 | L. Sobiech | 1. FC Köln | — | Loan |
| 11.01.2020 | L. Schaub | 1. FC Köln | Hamburger SV | Loan |
| 08.01.2020 | D. Churlinov | 1. FC Köln | VfB Stuttgart | N/A |
| 29.08.2019 | N. Nartey | 1. FC Köln | VfB Stuttgart | N/A |
| 23.08.2019 | S. Özcan | 1. FC Köln | Holstein Kiel | Loan |
| 22.08.2019 | Y. Bisseck | 1. FC Köln | Roda | Loan |
| 18.08.2019 | F. Sørensen | 1. FC Köln | BSC Young Boys | Loan |
| 15.08.2019 | J. Horn | 1. FC Köln | — | Loan |
| 08.08.2019 | João Queirós | 1. FC Köln | — | Loan |
| 05.08.2019 | J. Geis | 1. FC Köln | — | Free |
| 04.07.2019 | T. Handwerker | 1. FC Köln | — | N/A |
| 02.07.2019 | T. Ostrák | 1. FC Köln | TSV Hartberg | Loan |
| 01.07.2019 | S. Guirassy | 1. FC Köln | — | € 6M |
| 01.07.2019 | J. Bartels | 1. FC Köln | — | Loan |
| 01.07.2019 | H. Çiftçi | 1. FC Köln | — | Free |
| 12.03.2019 | N. Perry | 1. FC Köln | — | Loan |
| 31.01.2019 | S. Guirassy | 1. FC Köln | — | Loan |
| 17.01.2019 | Y. Bisseck | 1. FC Köln | Holstein Kiel | Loan |
| 01.01.2019 | S. Zoller | 1. FC Köln | VfL Bochum | N/A |
| 19.09.2018 | D. Maroh | 1. FC Köln | — | N/A |
| 14.08.2018 | T. Handwerker | 1. FC Köln | Groningen | Loan |