| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | Charles-Hubert Itandje | 1982-11-02 | 188 | 78 | 2015 jun | ||
| GK | Joe Cannon | 1975-01-01 | 188 | 91 | |||
| D | Abdoulaye Fayé | 1978-02-26 | 188 | 88 | |||
| D | Adama Coulibaly | 1980-09-10 | 186 | 83 | |||
| D | Benoît Assou-Ekotto | 1984-03-24 | 178 | 70 | 2018-06-30 | ||
| D | Rod Fanni | 1981-12-06 | 186 | 78 | 2018-06-30 | ||
| M | Papa Bouba Diop | 1978-01-28 | 191 | 93 | |||
| M | Seydou Keita | 1980-01-16 | 183 | 77 | 2016-06-30 | ||
| F | John Utaka | 1982-01-08 | 182 | 84 | |||
| F | Olivier Thomert | 1980-05-28 | 190 | 2011 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Jun | Clément Chantôme (M) | RC Lens | Stade Rennais FC | Confirmed | |
| 30.Jun | Álvaro Lemos (M) | RC Lens | Celta de Vigo | Confirmed | |
| 30.Jun | Karim Hafez (D) | RC Lens | Lierse SK | Confirmed | |
| 27.Jan | Patrick Olsen (M) | RC Lens | Grasshopper-Club Zürich | Confirmed | |
| 17.Jan | Loïck Landre (D) | RC Lens | Genoa CFC | Confirmed | |
| 1.Sep | Adama Guira (M) | SønderjyskE | RC Lens | Confirmed | |
| 31.Aug | Karim Hafez (D) | Lierse SK | RC Lens | Confirmed | |
| 4.Aug | Joris Delle (GK) | RC Lens | NEC Nijmegen | Confirmed | |
| 27.Jul | Wylan Cyprien (M) | RC Lens | OGC Nice | Confirmed | |
| 19.Jul | Teddy Chevalier (F) | Rizespor | RC Lens | Confirmed |