Gaetano Castrovilli (born 17 February 1997) is an Italian professional footballer who plays as midfielder for Serie A club Fiorentina and the Italy national team.

Castrovilli is a talented and versatile offensive–minded midfielder, with an eye for goal, who is capable of playing as an attacking midfielder or as an offensive–minded central midfielder, known as the mezzala role in Italian football jargon; he has also been deployed as a left winger, a position which allows him to cut onto his stronger right foot and shoot on goal.

Castrovilli made his senior debut for Italy under manager Roberto Mancini, on 15 November 2019, coming on as a late substitute for Lorenzo Insigne in a 3–0 away win over Bosnia and Herzegovina, in a Euro 2020 qualifier. Following an injury to Lorenzo Pellegrini, he was called-up in June 2021 by Mancini for Italy's UEFA Euro 2020 squad.