The 1973 New Zealand Grand Prix was a race held at the Pukekohe Park Raceway on 6 January 1973.

It was the 19th New Zealand Grand Prix, and doubled as the first round of the 1973 Tasman Series.

Australian John McCormack won his first NZGP in his Elfin MR5 who finished ahead of Britons Allan Rollinson and Steve Thompson.

After the fatal accident of Bryan Faloon the previous year, two chicanes were added to circuit in a bid to slow the cars down.

These chicanes were very artificial, with them being made up of concrete kerbing, railway sleepers and tractor tyres.