| Type: | cardinal |
| Honorific-Prefix: | His Eminence |
| Giulio Antonio Santorio | |
| Cardinal, Bishop of Palestrina | |
| Appointed: | 6 March 1566 |
| Term Start: | 12 March 1566 |
| Term End: | 9 January 1573 |
| Predecessor: | Giovanni Battista Orsini |
| Successor: | Francesco Antonio Santorio |
| Other Post: | Cardinal-Bishop of Palestrina |
| Ordination: | 1557 |
| Consecration: | 12 March 1566 |
| Consecrated By: | Scipione Rebiba |
| Cardinal: | 17 May 1570 |
| Rank: | Cardinal-Bishop |
| Birth Name: | Giulio Antonio Santorio |
| Birth Date: | 6 June 1532 |
| Birth Place: | Caserta |
| Religion: | Roman Catholic |
Giulio Antonio Santorio (6 June 1532 - 9 May 1602) was an Italian Cardinal of the Roman Catholic Church.
Santorio was born in Caserta. He served as Archbishop of Santa Severina from 1566 until his death.[1] [2]
On 12 March 1566, Santorio was consecrated bishop by Scipione Rebiba with Annibale Caracciolo, Bishop of Isola, and Giacomo de' Giacomelli, Bishop Emeritus of Belcastro, serving as co-consecrators. Santorio was made Cardinal on 17 May 1570, and installed as the Cardinal-Priest of S. Bartolomeo all'Isola the same year, and subsequently became Cardinal-Priest of S. Maria in Trastevere in 1595 and finally in 1597 Cardinal-Bishop of Palestrina. Through his own episcopal consecration of Girolamo Bernerio, Cardinal Santorio figures in the episcopal lineage of Pope Francis, Pope Benedict XVI, and most modern bishops.