Giovanni Battista Orsini
Giovanni Battista Orsini is the name of the following people:
- Giovanni Battista Orsini (Johanniter) (also Jean-Baptiste des Ursins, Iohannes Baptista de Ursinis , † 1476), Italian Grand Master of the Order of St. John
- Giovanni Battista Orsini (Cardinal) (also Giambattista Orsini , around 1450–1503), Cardinal of the Roman Church
- Giovanni Battista Orsini (Archbishop) (1528–1566), Archbishop of Santa Severina