The 2008 Formula 3 International Series was the 58th British Formula 3 International Series season. It began on 24 March 2008 at Oulton Park's Easter Monday meeting and ended on 12 October at Donington Park after 22 rounds in four countries. Jay Bridger sealed the National Class championship at the Bucharest meeting, with a third place in round nineteen. The overall championship went down to the final meeting as Oliver Turvey, Jaime Alguersuari, Brendon Hartley and Sergio Pérez all had a chance of winning the title, however it was Alguersuari that won the title, thanks to a double win at Donington.