| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | Alexander Nübel | 1996-09-30 | 193 | 85 | 2018-06-30 | ||
| GK | Daniel Lück | 1991-05-18 | 189 | ||||
| GK | Lukas Kruse | 1983-07-09 | 185 | 2017-06-30 | |||
| GK | Nico Burchert | 1987-06-24 | 192 | ||||
| D | Christian Strohdiek | 1988-01-22 | 192 | 2018-06-30 | |||
| D | Daniel Brückner | 1981-02-14 | 183 | ||||
| D | Florian Hartherz | 1993-05-29 | 187 | 82 | 2017-06-30 | ||
| D | Michael Heinloth | 1992-02-09 | 177 | - | 2017-06-30 | ||
| D | Patrick Ziegler | 1990-02-09 | 187 | 2019-06-30 | |||
| D | Rafa | 1985-04-09 | 179 | 76 | 2019-06-30 | ||
| D | Thomas Bertels | 1986-11-05 | 193 | 2016-06-30 | |||
| D | Tim Welker | 1993-09-08 | 188 | ? | |||
| D | Uwe Hünemeier | 1986-01-09 | 189 | 79 | 2018-06-30 | ||
| M | Alban Meha | 1986-04-26 | 173 | 74 | 2015 jun | ||
| M | Idir Ouali | 1988-05-21 | 176 | 2017-06-30 | |||
| M | Jens Wemmer | 1985-10-31 | 185 | 2015 jun | |||
| M | Lukas Rupp | 1991-01-08 | 179 | 64 | 2018-06-30 | ||
| M | Marc Vucinovic | 1988-09-19 | 179 | - | 2017-06-30 | ||
| M | Mario Vrancic | 1989-05-23 | 186 | 77 | 2017-06-30 | ||
| M | Marvin Bakalorz | 1989-09-13 | 180 | 73 | 2017-06-30 | ||
| M | Mirnes Pepic | 1995-12-19 | 177 | - | 2018-06-30 | ||
| M | Moritz Stoppelkamp | 1986-12-11 | 180 | 73 | 2018-06-30 | ||
| M | Süleyman Koc | 1989-06-09 | 178 | - | 2018-06-30 | ||
| F | Elias Kachunga | 1992-04-22 | 177 | 64 | 2019-06-30 | ||
| F | Mahir Saglik | 1983-01-18 | 178 | 2016-06-30 | |||
| F | Marvin Ducksch | 1994-03-07 | 188 | 79 | 2018-06-30 | ||
| F | Srdjan Lakic | 1983-10-02 | 186 | 83 | 2016-06-30 | ||
| F | Stefan Kutschke | 1988-11-03 | 194 | 2017-06-30 | |||
| F | Viktor Maier | 1989-08-26 | - | - |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Jun | Lukas Böder (D) | SC Paderborn 07 | Bayer 04 Leverkusen | Confirmed | |
| 24.Jan | Lukas Böder (D) | Bayer 04 Leverkusen | SC Paderborn 07 | Confirmed | |
| 30.Jun | Nicklas Helenius (F) | SC Paderborn 07 | Aalborg BK | Confirmed | |
| 21.Jun | Christian Strohdiek (D) | Fortuna Düsseldorf | SC Paderborn 07 | Confirmed | |
| 16.Jun | Hauke Wahl (D) | SC Paderborn 07 | FC Ingolstadt 04 | Confirmed | |
| 31.May | Marvin Bakalorz (M) | SC Paderborn 07 | Hannover 96 | Confirmed | |
| 30.May | Moritz Stoppelkamp (M) | SC Paderborn 07 | Karlsruher SC | Confirmed | |
| 1.Feb | Nick Proschwitz (F) | SC Paderborn 07 | VV Sint-Truidense | Confirmed | |
| 1.Feb | Nicklas Helenius (F) | Aalborg BK | SC Paderborn 07 | Confirmed | |
| 29.Jan | Nicklas Helenius (F) | Aalborg BK | SC Paderborn 07 | Rumour |