| Season: | 2005–06 |
| League Result: | 5th |
| League Topscorer: | Mamadou Niang (10 goals) |
| Season Topscorer: | Mamadou Niang (13 goals) |
| Pattern La1: | _om0506home |
| Pattern B1: | _olympique de marseille 0506 h |
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| Pattern So1: | _om0506home |
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| Pattern Sh2: | _om0506away |
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| Nextseason: | 2006–07 |
Olympique de Marseille just missed out on Champions League qualification, but recorded 60 league points, an improvement on previous seasons. New signing Franck Ribéry got an international breakthrough, being linked to transfers to several European top clubs and being instrumental in France reaching the final of the World Cup. In spite of all rumours, Ribéry would stay at the club for a further season. That did not apply to manager Jean Fernandez, who left for Auxerre at the end of the season.
See main article: 2005–06 Ligue 1.
See main article: 2005–06 Coupe de France.
See main article: 2005–06 Coupe de la Ligue.
See main article: 2005 UEFA Intertoto Cup.
See main article: 2005–06 UEFA Cup.
See main article: 2005–06 UEFA Cup final phase.