The 2003–04 season was the 68th season in the existence of US Créteil-Lusitanos and the club's fifth consecutive season in the second division of French football.
In addition to the domestic league, US Créteil-Lusitanos participated in this season's editions of the Coupe de France and the Coupe de la Ligue.
Win Draw Loss Source: Competitions Source: Ligue 2