| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | 1 | Dirk Orlishausen | 1982-08-15 | 197 | 2018-06-30 | ||
| GK | 25 | Florian Stritzel | 1994-01-31 | 196 | - | 2017-06-30 | |
| GK | 24 | René Vollath | 1990-03-20 | 185 | - | 2018-06-30 | |
| D | 26 | Bjarne Thoelke | 1992-04-11 | 190 | 2017-06-30 | ||
| D | 17 | David Kinsombi | 1995-12-12 | 183 | 76 | 2018-06-30 | |
| D | 5 | Dennis Kempe | 1986-06-24 | 187 | 2018-06-30 | ||
| D | 14 | Jordi Figueras | 1987-05-16 | 184 | 78 | 2018-06-30 | |
| D | 4 | Martin Stoll | 1983-02-09 | 188 | 2018-06-30 | ||
| D | 35 | Matthias Bader | 1997-06-17 | 176 | - | 2018-06-30 | |
| D | 33 | Niklas Hoffmann | 1997-04-09 | 194 | 2019-06-30 | ||
| D | 20 | Ylli Sallahi | 1994-04-06 | 176 | 2018-06-30 | ||
| M | 15 | Boubacar Barry | 1996-04-15 | 182 | - | 2018-06-30 | |
| M | Charalampos Mavrias | 1994-02-21 | 177 | 74 | 2019-06-30 | ||
| M | 22 | Enrico Valentini | 1989-02-20 | 182 | 2017-06-30 | ||
| M | 6 | Franck Kom | 1991-09-18 | 174 | 2020-06-30 | ||
| M | 21 | Gaetan Krebs | 1985-11-18 | 165 | 2017-06-30 | ||
| M | 19 | Grischa Prömel | 1995-01-09 | 183 | 79 | 2018-06-30 | |
| M | 10 | Hiroki Yamada | 1988-12-27 | 173 | - | 2017-06-30 | |
| M | 18 | Manuel Torres | 1991-01-05 | 175 | 2018-06-30 | ||
| M | 16 | Marvin Mehlem | 1997-09-11 | 174 | 2018-06-30 | ||
| M | 7 | Moritz Stoppelkamp | 1986-12-11 | 180 | 73 | 2018-06-30 | |
| M | 32 | Tim Grupp | 1995-01-05 | 183 | - | 2017-06-30 | |
| M | 34 | Tim Fahrenholz | 1994-03-22 | 171 | 2018-06-30 | ||
| M | Yann Rolim | 1995-03-15 | 173 | ||||
| F | 9 | Dimitrios Diamantakos | 1993-03-05 | 182 | 74 | 2019-06-30 | |
| F | 8 | Erwin Hoffer | 1987-04-14 | 177 | 72 | 2017-06-30 | |
| F | Florian Kamberi | 1995-03-08 | 189 | ||||
| F | 36 | Valentino Vujinovic | 1999-02-20 | 179 | 2019-06-30 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Jun | Stefan Mugosa (F) | Karlsruher SC | TSV 1860 München | Confirmed | |
| 31.Jan | Stefan Mugosa (F) | TSV 1860 München | Karlsruher SC | Confirmed | |
| 31.Dec | Vadim Manzon (F) | FK Bodø-Glimt | Karlsruher SC | Confirmed | |
| 7.Sep | Charalampos Mavrias (M) | Sunderland AFC | Karlsruher SC | Confirmed | |
| 18.Aug | Vadim Manzon (F) | Karlsruher SC | FK Bodø-Glimt | Confirmed | |
| 28.Jul | Jordi Figueras (D) | Club Brugge K.V. | Karlsruher SC | Confirmed | |
| 30.Jun | Mohamed Gouaida (M) | Karlsruher SC | Hamburger SV | Confirmed | |
| 21.Jun | Franck Kom (M) | Etoile Sportive du Sahel | Karlsruher SC | Confirmed | |
| 30.May | Moritz Stoppelkamp (M) | SC Paderborn 07 | Karlsruher SC | Confirmed | |
| 27.Aug | Mohamed Gouaida (M) | Hamburger SV | Karlsruher SC | Confirmed |