| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| D | Karim Hafez | 1996-03-12 | 2018-06-30 | ||||
| M | Allasane-Méba Diaby | 1995-01-06 | 180 | 69 | 2017-06-30 | ||
| F | Aurélien Joachim | 1986-08-10 | 185 | 80 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Jun | Karim Hafez (D) | RC Lens | Lierse SK | Confirmed | |
| 31.Aug | Karim Hafez (D) | Lierse SK | RC Lens | Confirmed | |
| 30.Jun | Etien Velikonja (F) | Lierse SK | Cardiff City | Confirmed | |
| 20.Jul | Allasane-Méba Diaby (M) | AS Monaco FC | Lierse SK | Confirmed | |
| 26.Jan | Apostolos Vellios (F) | Lierse SK | FC Vestsjælland | Confirmed | |
| 8.Jan | Etien Velikonja (F) | Cardiff City | Lierse SK | Confirmed | |
| 19.May | Julien Vercauteren (M) | Lierse SK | OGC Nice | Confirmed | |
| 1.Sep | Tony Watt (F) | Celtic FC | Lierse SK | Confirmed | |
| 5.Jul | Soufiane Bidaoui (M) | Lierse SK | Parma FC | Confirmed | |
| 26.Jan | Dolly Menga (F) | Lierse SK | Torino FC | Confirmed |