Mackenzie Harvey (born 18 September 2000) is an Australian cricketer. In January 2018, he was drafted in by the Melbourne Renegades as a replacement player for Aaron Finch for 2017-18 Big Bash League season, but did not play.
He made his List A debut for Victoria in the 2018–19 JLT One-Day Cup on 26 September 2018. He made his Twenty20 debut for Melbourne Renegades in the 2018–19 Big Bash League season on 29 December 2018. He is a nephew of former Australian cricketer Ian Harvey.
In December 2019, he was named in Australia's squad for the 2020 Under-19 Cricket World Cup. Initially, Australia did not name a captain of their squad, however Harvey was officially named as the team captain just ahead of their opening match.