Alessandro Borgia

Fra' Alessandro Ponziano Borgia (October 30, 1783, Velletri, Papal States – January 13, 1872, Rome) was the leader of the Sovereign Military Order of Malta as Lieutenant of the Grand Master from 1865 to 1872.

Borgia was a younger son of Cavaliere Giampaolo Borgia, a member of a branch of the Borgia family from the city of Velletri who were distantly related to Pope Alexander VI. His mother was Countess Alcmena Baglioni-Malatesta, descended from the Baglioni family which formerly ruled the city of Perugia. His older brother Cesare was also a member of the Sovereign Military Order of Malta. He made his solemn profession as a Knight of Justice in 1802. In 1818 he took up residence at the Order's headquarters (called the "Convent") in Catania where he served as Procurator of the Langue of Italy.

Borgia died at the Palazzo Malta in Rome in 1872. He was succeeded as Lieutenant of the Grand Master by Fra' Giovanni Battista Ceschi a Santa Croce.