| Club: | RC Lens |
| Season: | 2005–06 |
| Chrtitle: | President |
| Chairman: | Gervais Martel |
| Mgrtitle: | Head coach |
| Manager: | Francis Gillot |
| Stadium: | Stade Félix-Bollaert |
| League: | Ligue 1 |
| League Result: | 4th |
| Cup1: | Coupe de France |
| Cup1 Result: | Round of 32 |
| Cup2: | Coupe de la Ligue |
| Cup2 Result: | Second round |
| League Topscorer: | Daniel Cousin (13) |
| Season Topscorer: | Daniel Cousin (21) |
| Average Attendance: | 34,502[1] |
| Prevseason: | 2004–05 |
| Nextseason: | 2006–07 |
The 2005–06 season was the 100th season in the existence of RC Lens and the club's 15th consecutive season in the top-flight of French football. In addition to the domestic league, Lens participated in this season's editions of the Coupe de France and Coupe de la Ligue.[2]
| scope=col | Player | Transferred from | scope=col; style="width: 65px;" | Fee | scope=col | Date | scope=col | Source | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 22 | Espérance Sportive de Tunis | Undisclosed | ||||||||
| 27 | Anderlecht | Undisclosed | ||||||||
| 26 | Ajaccio | Free transfer | ||||||||
| 23 | Liverpool | Undisclosed | ||||||||
| 14 | Lyon | Loan | ||||||||
| 7 | Danubio | Undisclosed |
| scope=col | Player | Transferred to | scope=col; style="width: 65px;" | Fee | scope=col | Date | scope=col | Source | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 21 | Rennes | €6,000,000 | [3] | |||||||
| 7 | Beitar Jerusalem | €500,000 | [4] |
See main article: 2005–06 Ligue 1.
See main article: 2005–06 Coupe de France.
See main article: 2005–06 Coupe de la Ligue.