2008–09 in French football

The 2008–09 season was RC Lens's 103rd season in existence and the club's first season back in the second division of French football since 1990. In addition to the domestic league, Lens participated in this season's edition of the Coupe de France and the Coupe de la Ligue. The season covered the period from 1 July 2008 to 30 June 2009.

The 2008 Trophée des Champions Final was a football match that saw the 2007–08 Ligue 1 and Coupe de France champions Lyon face off against Bordeaux. Since Lyon won both the league and the Coupe de France, they faced the club that finished in second place in Ligue 1, Bordeaux.

The 2008–09 season was the 98th season in the history of Grenoble Foot 38 and the club's first season back in the top flight of French football since 1963. In addition to the domestic league, Grenoble participated in this season's editions of the Coupe de France and the Coupe de la Ligue.

The 2008–09 season was the 108th season in the existence of Stade Rennais FC and the club's 15th consecutive season in the top flight of French football. In addition to the domestic league, Angers participated in this season's edition of the Coupe de France and the Coupe de la Ligue. The season covered the period from 1 July 2008 to 30 June 2009.

The 2008–09 season was the 72nd season in the existence of Toulouse FC and the club's 6th consecutive season in the top flight of French football. They participated in the Ligue 1, the Coupe de France and Coupe de la Ligue.

The 2008–09 season was the 119th season in the existence of FC Girondins de Bordeaux and the club's 18th consecutive season in the top flight of French football. In addition to the domestic league, Bordeaux participated in this season's editions of the Coupe de France, the Coupe de la Ligue, the Trophée des Champions, the UEFA Champions League, and the UEFA Cup.

The 2009 Coupe de France final was the 91st final of France's most prestigious cup competition, the Coupe de France. The final was played at the Stade de France in the Paris suburb of Saint-Denis on 9 May 2009 and was contested between Rennes of Ligue 1 and Guingamp of Ligue 2. Guingamp earned its first Coupe de France trophy after defeating Rennes 2–1 through two second-half goals from Eduardo.

The 2009 Coupe de la Ligue final was the 15th final in this young cup's history. The final was played at the Stade de France in Paris on 25 April 2009 was contested between FC Girondins de Bordeaux of Ligue 1 and Vannes OC of Ligue 2. This was the first meeting between the two clubs. This was Bordeaux's fifth appearance in the final having won in 2002 and 2007 and losing in the 1997 and 1998 editions of the cup. This was Vannes's first ever appearance in the cup final. With their appearance, Vannes were the first ever club to reach the final after beginning from the 1st round. Bordeaux won the match 4–0 after getting off to a fast start scoring their first three goals inside of 13 minutes.

During the 2008–09 French football season, Olympique de Marseille competed in Ligue 1.

The 2008–09 season was AS Monaco FC's 52nd season in Ligue 1. They finished eleventh in Ligue 1, and were knocked out of the Coupe de la Ligue by RC Lens, in the Round of 32, and the Coupe de France by Marseille in the Round of 32.