List of Famous people with last name Giustiniani

Giovanni Giustiniani Longo was a Genoese captain, a member of one of the greatest families of the Republic of Genoa, a kinsman to the powerful house of Doria in Genoa, and protostrator of the Eastern Roman (Byzantine) Empire. He led 700 professional soldiers, both Genoese and Greeks from the island of Chios, which at the time was part of the Republic of Genoa, to the defense of Constantinople against the Ottoman army of Sultan Mehmed II in 1453. He personally financed, organized and led this expedition on his own initiative, and upon arriving was placed in command of the land defenses by Emperor Constantine XI Palaiologos of the Byzantine Empire. Giustiniani was key in controlling the land forces and keeping the Greeks, Genoese and Venetians from quarrelling with each other, and instead kept focused on repairing the land walls after the Ottoman cannons had shot holes in them. It was at least partly because of Giustiniani's charisma that the Byzantine forces were able to hold out so long against overwhelming odds.

Benedetto Giustiniani was an Italian clergyman who was made a cardinal in the consistory of 16 November 1586 by Pope Sixtus V.

Vincenzo Giustiniani was an Italian-Greek Dominican friar of Genoese heritage.

Marchese Vincenzo Giustiniani was an aristocratic Italian banker, art collector and intellectual of the late 16th and early 17th centuries, known today largely for the Giustiniani art collection, assembled at the Palazzo Giustiniani, near the Pantheon, in Rome, and at the family palazzo at Bassano by Vincenzo and his brother, Cardinal Benedetto, and for his patronage of the artist Caravaggio.

Lawrence Justinian is venerated as a saint by the Catholic Church. He was a canon regular who was appointed as a bishop and became the first Patriarch of Venice.

Giacomo Giustiniani (1769–1843) was an Italian priest, papal diplomat and Cardinal. Considered papabile in the Papal Conclave (1830–31), his election was vetoed by Ferdinand VII of Spain.