The 2009–10 season was the 77th season of competitive professional football in France.
The season began on 7 August 2009 for the Championnat National and Ligue 2 and on 8 August for Ligue 1 and the Championnat de France amateur. The season concluded on 14 May 2010 for Ligue 2, 15 May for Ligue 1, and 21 May for the Championnat National and the Championnat de France amateur.

News
Supercup in Canada
On 12 May, it was announced that the 2009 Trophée des Champions will be played, for the first time, on international soil at Olympic Stadium in Montreal, Canada. The match will contest the winners of the 2008–09 Coupe de France, Guingamp, and the 2008–09 Ligue 1 champions, Bordeaux, with the objective being to promote French professional football abroad.

Match ball sponsorship
On 5 June, it was announced that German sportswear company Puma will become the official provider of match balls for the upcoming season after agreeing to a long term partnership with the Ligue de Football Professionnel (LFP).

Presidential departures
On 17 June, Marseille announced that they were parting ways with longtime chairman Pape Diouf. Diouf had been chairman of the club for five years and was the only black chairman ever to preside over a Ligue 1 club. Jean-Claude Dassier was announced as his replacement.
On 7 July, Auxerre announced that Alain Dujon will become the club's new president. He replaces Jean-Claude Hamel, who had presided over the club for over 46 years.
On 10 September, Paris Saint-Germain announced that president Sébastien Bazin would step down from his role in order to supervise the club's surveillance council. He was replaced by Robin Leproux.
Television deal
On 29 June, the LFP board of directors announced that France Télévisions will be the official provider of Coupe de la Ligue coverage for the next three seasons.
French football records
On 9 August 2009, Bordeaux established a record for most consecutive league wins with 12, surpassing Lille, who won 11 consecutive matches in 1949, winning their last four games of the 1948–49 season and their first seven in the 1949–50 season. Bordeaux's streak began during the 2008–09 Ligue 1 season on 14 March 2009 following a 2–1 victory over Nice. The club broke the record on the opening match day of this season defeating Lens 4–1. The record lasted for 14 matches before coming to an end on 30 August following the club's 0–0 draw with Marseille.
On 31 October 2009, Grenoble set a record for most consecutive losses in French football following the club's 11th-straight league defeat, an 0–2 loss to Lille. The previous record of ten-straight defeats, held by Sète, had been intact since 1947. The losing streak came to an end the following week, on 7 November, following the club's 0–0 draw with Monaco.
DNCG rulings
On 23 June, the Direction Nationale du Contrôle de Gestion (DNC) ruled that Arles-Avignon would not be allowed to play in Ligue 2 following their promotion from the Championnat National, due to irregularities in the club's management. On 3 July, following an appeal, the DNCG reversed its decision, reinstating Arles' Ligue 2 status.
Following the DNCG's annual report on clubs, on 25 June it was announced that six clubs had been relegated from the National to lower divisions: AS Beauvais, SO Cassis Carnoux, CS Louhans-Cuiseaux, and FC Libourne Saint-Seurin were relegated to the Championnat de France Amateurs. Meanwhile, Besançon RC, US Luzenac, and FC Rouen, who were all recently promoted, were relegated to Championnat de France Amateurs 2, while Sète and Calais RUFC were relegated to the Division d'Honneur. All clubs relegated were allowed to appeal the decision.
Following an appeal from the aforementioned clubs, Rouen, Beauvais and Luzenac had their appeals successfully overturned, meaning they will remain in the Championnat National. Some clubs were, however, unsuccessful. For example, Sète's appeal was upheld relegating them to the Division d'Honneur; Stade Plabennecois will replace them in the Championnat National. Libourne Saint-Seurin, Besançon and Calais' appeals were also rejected by the DNCG, though all three clubs have decided to take their case to the CNOSF, the National Sporting Committee of France which governs sport in France. Both Calais and Besançon's rulings were determined on 23 July. The CNOSF determined that Besançon should be relegated to the CFA and not CFA 2, while Calais should respect and oblige the DNCG's ruling relegated them to CFA 2.





