Sébastien Pourcel (born February 11, 1985 in Martigues, Bouches-du-Rhône) is a French professional motocross racer competing in the FIM MX1-GP Motocross World Championships.Pourcel started international motocross competition in 2002 in the MX2-GP class.
In 2007, he moved up to the premier MX1-GP class and finished in fourth place.
He joined his brother Christophe Pourcel on the official Kawasaki GPKR Team, which was started by their father, Roger, and Patrick Gelade.