2009–10 Ligue 2
| Season | 2009–10 | 
|---|---|
| Champions | Caen | 
| Promoted | Caen Brest Arles-Avignon | 
| Relegated | Guingamp Strasbourg Bastia | 
| Matches played | 380 | 
| Goals scored | 883 (2.32 per match) | 
| Top goalscorer | Olivier Giroud (21) | 
| Biggest home win | Bastia 6–1 Nîmes (18 August 2009) Nantes 5–0 Istres (21 August 2009) | 
| Biggest away win | Nîmes 0–4 Caen (27 November 2009) | 
| Highest scoring | Dijon FCO 5–4 Châteauroux (30 October 2009) | 
| ← 2008–09  2010–11 →  | |
The Ligue 2 2009–10 season was the sixty-ninth edition since its establishment. The fixtures were announced on 5 June 2009, and the league began on 7 August and ended on 14 May 2010.
German sportswear company Puma became the official provider of match balls for the season after agreeing to a long term partnership with the Ligue de Football Professionnel.