Harry L. Firth (18 April 1918 - 27 April 2014) was an Australian racing driver and team manager. Firth was a leading race and rally driver during the 1950s and 1960s and continued as an influential team manager with first the Ford works team and then the famed Holden Dealer Team (HDT) well into the 1970s. He was born in Orbost, Victoria.