Hiroshi Aoyama (青山 博一, Aoyama Hiroshi?, born October 25, 1981 in Ichihara, Chiba) is a Japanese Grand Prix motorcycle road racer. He is the older brother of former 250cc and World Superbike rider, Shuhei Aoyama.
In his six seasons in the 250cc World Championship, he raced Honda and KTM machinery in an Aprilia-dominated class. He took eight victories and never finished lower than seventh overall. He won the 2009 250cc World Championship, becoming the last ever winner of this class before its replacement by the Moto2 class in 2010. In 2010 Aoyama makes the move up to the premier class with Interwetten Racing.