| Competition: | Ligue 1 |
| Season: | 2004–05 |
| Dates: | 6 August 2004 – 28 May 2005 |
| Winners: | Lyon (4th Title) |
| Relegated: | Caen Bastia Istres |
| Continentalcup1: | Champions League |
| Continentalcup1 Qualifiers: | Lyon Lille Monaco |
| Continentalcup2: | UEFA Cup |
| Continentalcup2 Qualifiers: | Rennes Auxerre Strasbourg |
| League Topscorer: | Alexander Frei (20 goals) |
| Matches: | 380 |
| Total Goals: | 826 |
| Prevseason: | 2003–04 |
| Nextseason: | 2005–06 |
The 2004–05 season of Ligue 1 was a very close-run battle. Separating fourth placed Rennes, who enter the UEFA Cup and 18th placed Caen, who get relegated to Ligue 2, were just 13 points. Lyon were long time leaders and had won the league back in April 2005. On the last day, 4 teams could have got the 4th place guaranteeing a place in the UEFA Cup and any 2 from 6 teams could have been relegated before the final games.
| Month | Player | |
|---|---|---|
| August |  Franck Ribéry (FC Metz) | |
| September | Fabien Barthez (Olympique de Marseille) | |
| October |  Michael Essien (Olympique Lyonnais) | |
| November | Camel Meriem (AS Monaco) | |
| January | Peguy Luyindula (Olympique de Marseille) | |
| February |  Juninho Pernambucano (Olympique Lyonnais) | |
| March | Juninho Pernambucano (Olympique Lyonnais) | |
| April | Matt Moussilou (Lille OSC) | |
| May |  Mamadou Niang (RC Strasbourg) |
