Harry Cutler Blanchard (June 13, 1929, Burlington, Vermont – January 31, 1960, Buenos Aires, Argentina) was an American racecar driver.

His only Grand Prix appearance came at the wheel of a Porsche RSK Formula 2 car in the first US Grand Prix at Sebring in 1959. He finished seventh and last, four laps behind the winner Bruce McLaren. A few months later he died when his Porsche sportscar overturned during the 1000 km Buenos Aires race.

Complete Formula One results

(key)

Year Entrant Chassis Engine 1 2 3 4 5 6 7 8 9 WDC Points 1959 Blanchard Auto Co. Porsche RSK Porsche Flat-4 MON 500 NED FRA GBR GER POR ITA USA
7 NC 0