Alessandro Buongiorno (born 6 June 1999) is an Italian professional footballer who plays as a centre-back for Serie A club Torino.
On 14 February 2018, Buongiorno signed a professional contract with Torino, keeping him in the club until 2022. He made his Serie A debut for Torino in a 4–1 win over Crotone on 4 April 2018, coming on as a substitute in the 82nd minute.
In the 2018–19 season, he was loaned to Carpi in Serie B.
On 11 January 2020, Buongiorno joined Serie B club Trapani on loan until 30 June 2020.
Buongiorno took part in the 2019 FIFA U-20 World Cup with the Italy U20 squad.
On 13 October 2020, he made his debut with the Italy U21 playing as a starter in a qualifying match won 2–0 against Republic of Ireland in Pisa.