Jack Andrew MacKenzie (born 7 April 2000) is a Scottish professional footballer who plays as left-back for club Plymouth Argyle.
MacKenzie joined the Aberdeen youth system aged nine. He was captain of the club's development side and signed a two-year contract in 2019. In March 2020, MacKenzie was due to join Atlanta United 2 on loan, but the move was cancelled due to the COVID-19 pandemic.
In October 2020, MacKenzie joined Scottish League One club Forfar Athletic on loan, going on to make 14 appearances.
MacKenzie made his first team debut for Aberdeen on 20 March 2021, in a Scottish Premiership game against Dundee United under interim manager Paul Sheerin. Following his debut, MacKenzie signed a new two-year contract due to run until 2023.
At the end of the last match of the Premiership season against Dundee United on 17 May 2025, he was struck in the head by a seat thrown from his own club's supporters (aimed at home fans who had invaded the field in celebration at the outcome) and sustained a "serious facial injury". He had recovered sufficiently to appear as a substitute in the 2025 Scottish Cup final a week later, which Aberdeen won on penalties. MacKenzie was released by Aberdeen after the final, following the expiry of his contract.
MacKenzie signed a three-year contract with Plymouth Argyle on 30 May 2025. He did not play at all in the first half of the 2025âÂÂ26 season due to injuries.
Mackenzie received his first international call-up of his career for the senior Scottish national team in October 2024, for Scotland's Nations League fixtures with Croatia and Portugal.
Aberdeen