Robert Mackenzie is an Australian supervising sound editor.

He is best known for his work on Animal Kingdom (2010), The Hunter (2011), Lore (2012), Felony (2013), The Grandmaster (2013), The Rover (2014), Deadline Gallipoli (2015), Partisan (2015), Lion, and the critically acclaimed war-drama film Hacksaw Ridge, for which he received two Academy Award nominations at the 89th Academy Awards, Best Sound Editing and Best Sound Mixing (both shared with Andy Wright).

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