| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | 32 | Felix Dornebusch | 1994-07-12 | 193 | - | 2019-06-30 | |
| GK | 38 | Florian Kraft | 1998-08-04 | 184 | 2017-06-30 | ||
| GK | 1 | Manuel Riemann | 1988-09-09 | 186 | 2018-06-30 | ||
| GK | 30 | Martin Kompalla | 1992-08-26 | 186 | 2018-06-30 | ||
| D | 5 | Felix Bastians | 1988-05-09 | 188 | 2017-06-30 | ||
| D | 18 | Jan Gyamerah | 1995-06-18 | 184 | - | 2017-06-30 | |
| D | Jannik Bandowski | 1994-03-30 | 190 | 74 | |||
| D | 29 | Maxim Leitsch | 1998-05-18 | 188 | 2017-06-30 | ||
| D | 27 | Nico Rieble | 1995-08-22 | 182 | 2018-06-30 | ||
| D | 19 | Patrick FabianC | 1987-10-11 | 194 | 2018-06-30 | ||
| D | 21 | Stefano Celozzi | 1988-11-02 | 171 | 65 | 2020-06-30 | |
| D | 24 | Timo Perthel | 1989-02-11 | 185 | 2019-06-30 | ||
| D | 31 | Tom Baack | 1999-03-13 | 180 | 2017-06-30 | ||
| M | Alexander Merkel | 1992-02-22 | 177 | 67 | 2018-06-30 | ||
| M | 8 | Anthony Losilla | 1986-03-10 | 185 | 2019-06-30 | ||
| M | 11 | Arvydas Novikovas | 1990-12-18 | 179 | 2017-06-30 | ||
| M | 6 | Dominik Wydra | 1994-03-21 | 185 | 2018-06-30 | ||
| M | 16 | Gökhan Gül | 1998-07-17 | 180 | 2018-06-30 | ||
| M | 26 | Görkem Saglam | 1998-04-11 | 178 | 2018-06-30 | ||
| M | 35 | Hayk Galstyan | 1998-03-23 | 171 | 2018-06-30 | ||
| M | 22 | Kevin Stöger | 1993-08-27 | 175 | 70 | 2018-06-30 | |
| M | 39 | Marco Stiepermann | 1991-02-09 | 190 | 75 | 2017-06-30 | |
| M | 4 | Russell Canouse | 1995-06-11 | 177 | 76 | 2018-06-30 | |
| M | 7 | Selim Gündüz | 1994-05-16 | 171 | 2018-06-30 | ||
| M | Thomas Eisfeld | 1993-01-18 | 177 | - | Loan | ||
| M | 28 | Tim Krafft | 1998-01-03 | 185 | 2017-06-30 | ||
| M | 2 | Tim Hoogland | 1985-06-11 | 183 | 78 | 2017-06-30 | |
| M | 23 | Tom Weilandt | 1992-04-27 | 186 | - | 2018-06-30 | |
| F | 9 | Johannes Wurtz | 1992-06-19 | 182 | 76 | 2017-06-30 | |
| F | 36 | Nils Quaschner | 1994-04-22 | 184 | 2017-06-30 | ||
| F | 14 | Peniel Mlapa | 1991-02-20 | 195 | 85 | 2017-06-30 | |
| F | 34 | Vangelis Pavlidis | 1998-11-21 | 185 | 2019-06-30 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Jun | Pawel Dawidowicz (D) | VfL Bochum | SL Benfica II | Confirmed | |
| 13.Aug | Pawel Dawidowicz (D) | SL Benfica II | VfL Bochum | Confirmed | |
| 1.Jul | Tobias Weis (M) | VfL Bochum | Brøndby IF | Doubtful | |
| 16.Jun | Johannes Wurtz (F) | SpVgg Greuther Fürth | VfL Bochum | Confirmed | |
| 16.Jun | Marco Stiepermann (M) | SpVgg Greuther Fürth | VfL Bochum | Confirmed | |
| 14.Jun | Simon Terodde (F) | VfL Bochum | VfB Stuttgart | Confirmed | |
| 31.Dec | Henrik Gulden (M) | Mjøndalen IF | VfL Bochum | Confirmed | |
| 20.Aug | Henrik Gulden (M) | VfL Bochum | Mjøndalen IF | Confirmed | |
| 7.Aug | Peniel Mlapa (F) | FC Nürnberg | VfL Bochum | Confirmed | |
| 26.Jun | Tim Hoogland (M) | Fulham FC | VfL Bochum | Confirmed |