The 2003–04 season was the 85th season in the existence of CS Sedan Ardennes and the club's first season back in the second division of French football.
In addition to the domestic league, CS Sedan Ardennes participated in this season's editions of the Coupe de France and the Coupe de la Ligue.
Win Draw Loss Last updated: 22 May 2004 Source: Competitions Last updated: 22 May 2004.
Source: Ligue 2 Source:[1]