The 1973 Tasman Series was a motor racing competition staged in New Zealand and Australia[1] for cars complying with the Tasman Formula.[2] The series, which began on 6 January and ended on 25 February after eight races,[1] was the tenth Tasman Series.[3] Officially known as the Tasman Championship for Drivers, it was organised jointly by the Motorsport Association New Zealand Incorporated and the Confederation of Australian Motor Sport.[4] The championship was won by Graham McRae, driving a McRae GM1 Chevrolet.[1]