The 2008 Melbourne Cup, the 148th running of Australia's most prestigious Thoroughbred horse race, was run on Tuesday, 4 November 2008, starting at 3:00 pm local time (0400 UTC). It was won by Viewed.
On 3 December 2008, Luca Cumani, trainer of second-place Bauer, announced that an inquiry was underway into treatment Bauer received on the Thursday prior to the race. The treatment was a form of physio therapy that is illegal to administer within 7 days of a race; as a result of the treatment, Bauer could have been stripped of his second place. However, Racing Victoria announced on 4 December that Bauer would not be disqualified.
The official field for the cup including horses scratched after the field was finalised.
The race was won by the Bart Cummings trained horse Viewed, with Honolulu officially last as Gallopin did not finish the race.