Luigi Maria Torreggiani (October 18, 1697 – January 6, 1777) was an Italian Cardinal.
His skills in ecclesiastical offices, led to a rapid rise in the Curia.
In 1758, he was named Cardinal Secretary of State for the Papacy by Clement XIII and remained a defender of the Jesuits.
With the election of Pope Clement XIV, he was replaced in this office by Cardinal Pallavicini.
He was buried in San Giovanni dei Fiorentini in Rome.