| Club: | Lille |
| Season: | 2012–13 |
| Chairman: | Michel Seydoux |
| Chrtitle: | President |
| Manager: | Rudi Garcia |
| Mgrtitle: | Head Coach |
| Stadium: | Grand Stade Lille Métropole |
| League: | Ligue 1 |
| League Result: | 6th |
| Cup1: | Coupe de France |
| Cup1 Result: | Round of 16 |
| Cup2: | Coupe de la Ligue |
| Cup2 Result: | Semi-finals |
| Cup3: | UEFA Champions League |
| Cup3 Result: | Group stage |
| League Topscorer: | Salomon Kalou (14) |
| Season Topscorer: | Salomon Kalou (16) |
| Highest Attendance: | 47,828 vs Marseille (14 April 2013) |
| Lowest Attendance: | 10,000 vs Nîmes (5 January 2013) |
| Prevseason: | 2011–12 |
| Nextseason: | 2013–14 |
| Pattern B1: | _lille1213h |
| Pattern So1: | _lille1213h |
| Leftarm1: | FF0000 |
| Body1: | FF0000 |
| Rightarm1: | FF0000 |
| Shorts1: | 000080 |
| Socks1: | 000080 |
| Pattern B2: | _lille1213a |
| Pattern So2: | _lille1213a |
| Leftarm2: | FFFFFF |
| Body2: | FFFFFF |
| Rightarm2: | FFFFFF |
| Shorts2: | FFFFFF |
| Socks2: | FFFFFF |
The 2012–13 season was Lille OSC's 69th season in existence and the club's 13th consecutive season in the top flight of French football.
This season marked the opening of the Grand Stade Lille Métropole, with a 50,000-seat capacity that went on to host several matches of UEFA Euro 2016.
Source:[1]
|-! colspan="15" style="background:#dcdcdc; text-align:center"| Goalkeepers|-|-! colspan="15" style="background:#dcdcdc; text-align:center"| Defenders|-! colspan="15" style="background:#dcdcdc; text-align:center"| Midfielders|-! colspan="15" style="background:#dcdcdc; text-align:center"| Forwards|-! colspan="15" style="background:#dcdcdc; text-align:center"| Players who left the club during the season|}
Source: Match reports in Competitive matches
| Name | Ligue 1 | Champions League | Coupe de France | Coupe de la Ligue | Total | ||
|---|---|---|---|---|---|---|---|
| rowspan= | 1 |  Salomon Kalou | 13 | 1 | 0 | 0 | 14 |
| rowspan= | 2 |  Dimitri Payet | 12 | 0 | 1 | 0 | 13 |
| rowspan= | 3 | Nolan Roux | 8 | 0 | 2 | 1 | 11 |
| rowspan= | 4 |  Marko Baša | 5 | 0 | 0 | 0 | 5 |
| 5 |  Aurélien Chedjou | 3 | 1 | 0 | 0 | 4 | |
| Ronny Rodelin | 3 | 0 | 0 | 1 | 4 | ||
Last updated: 26 May 2013
Source: Match reports in Competitive matches
|}
Supplier: Umbro
Sponsor(s): Groupe Partouche
See main article: 2012–13 Ligue 1.
See main article: 2012–13 UEFA Champions League.
See main article: 2012–13 Coupe de la Ligue.
See main article: 2012–13 Coupe de France.