The 2008 A-League Pre-Season Challenge Cup competition was held in July and August 2008, in the lead up to the start of the Australian A-League football 2008-09 season. All eight A-League clubs competed and were drawn into two groups of four teams. The format of the cup was modified from previous editions, reducing the number of matches. A group stage with three regular rounds saw team play each other in their group once, with the winner of each group advancing to the final. The final was played on 6 August, the first mid-week final in the competition history. The shortened format allowed clubs to schedule other matches in the lead up to the start of the A-League, and was completed before the 2008 Summer Olympics in which Australia competed.