2008–09 Argentine Primera División season

The 2008-09 Primera División season was the 118° season of top-flight professional football in Argentina and the nineteenth season in which the Apertura and Clausura system is used. Boca Juniors won the Apertura championship for their 23rd national title after a three team playoff with Tigre and San Lorenzo. The Clausura championship was won by Vélez Sársfield for their 7th national title. Gimnasia (Jujuy) and San Martin (Tucumán) were relegated to the Primera B Nacional.

2008–09 Argentine Primera División season

The 2008-09 Primera División season was the 118° season of top-flight professional football in Argentina and the nineteenth season in which the Apertura and Clausura system is used. Boca Juniors won the Apertura championship for their 23rd national title after a three team playoff with Tigre and San Lorenzo. The Clausura championship was won by Vélez Sársfield for their 7th national title. Gimnasia (Jujuy) and San Martin (Tucumán) were relegated to the Primera B Nacional.