Peter Machin (born 30 August 1973) is an Australian professional darts player.

When he was 14, Machin played on stage in the inaugural Australian Youth Masters where he reached the final.

Since 2011, Machin is a permanent member of the national team and took part in several World Cups.

In 2016, he took part in the BDO World Trophy and reached the final where he lost to Darryl Fitton.

At the 2023 WDF World Darts Championship, Machin missed double 12 for a perfect nine-dart game.