Alfredo Costanzo

Alfredo Costanzo (born 3 January 1943) is a retired Australian racing driver.

The Italian-Australian was Australia's foremost domestic open wheeler driver in the late 70s and early 80s, proving equally adapt at winning races in the powerful Formula 5000 class as much as the nimble Formula Pacific cars that replaced them. Under the patronage of Porsche Cars Australia distributor Alan Hamilton, Costanzo won four Australian Drivers' Championships, his titles straddling the transition from F5000 to Formula Atlantic based Pacific cars.

While a more than capable touring car driver, finishing second in the 1979 Hardie-Ferodo 1000 alongside Allan Grice he was unable to make the transition to racing sedans full time and the popular Italian-Australian faded from the racing scene when he left Formula Pacific in 1984.

The early 2000s saw a brief comeback as the lead driver in a factory supported Maserati team of production specification Maserati Ghiblis, but it proved to be short-lived as the cars were uncompetitive against the Porsche, Ferrari and Mazda teams.