The 2013 FIA WTCC Race of the United States was the ninth round of the 2013 World Touring Car Championship season and the second running of the FIA WTCC Race of the United States. It was held on 8 September 2013 at the Sonoma Raceway in Sonoma, California, United States. Race one was won by Tom Chilton of RML, his first victory in the World Touring Car Championship. Race two was won by Gabriele Tarquini of the Castrol Honda World Touring Car Team. Honda secured the 2013 Manufacturers' Championship in race two.