Hiroshi Masuoka (増岡 浩 Masuoka Hiroshi) (born 13 March 1960) is a Japaneserally driver. His most notable achievement was his back-to-back successes in the Dakar Rally in 2002 and 2003, only the fourth driver in the event's history to win in consecutive years. He was also victorious in the 2003 Baja Italy and the 2004 UAE Desert Challenge. Throughout his career he has been employed as a works driver by Mitsubishi Motors, typically driving a Pajero. The 2007 Dakar Rally was his twentieth consecutive participation in the event, during which time he has failed to finish only once.