2005 12 Hours of Sebring

The 2005 12 Hours of Sebring was the 53rd running of this event, and took place on March 19, 2005. The race was sponsored by Mobil 1 and was the opening race of the 2005 American Le Mans Series season run by IMSA.

Class winners in bold. Cars failing to complete 70% of winner's distance marked as Not Classified (NC).