The 2008 World Touring Car Championship season was the fifth World Touring Car Championship season, the fourth since its 2005 return. It began on 2 March, and ended on 16 November, after twenty-four races. The championship, which was open to Super 2000 Cars and Diesel 2000 Cars, was composed of the FIA World Touring Car Championship for Drivers and the FIA World Touring Car Championship for Manufacturers.

The FIA World Touring Car Championship was an international touring car championship promoted by Eurosport Events and sanctioned by the Fédération Internationale de l'Automobile (FIA). It has had several different incarnations, including a single season in 1987 as the World Touring Car Championship and most recently a world championship (WTCC) that has run between 2005 and 2017. Following the 2017 season, an agreement was reached for the FIA WTCC to become FIA WTCR and use the TCR technical regulations.