| Type: | Bishop |
| Honorific-Prefix: | Most Reverend |
| Mario Sassi | |
| Archbishop of Rossano | |
| Church: | Catholic Church |
| Archdiocese: | Archdiocese of Rossano |
| Term: | 1612–1615 |
| Predecessor: | Lucio Sanseverino |
| Successor: | Girolamo Pignatelli |
| Consecration: | 9 December 1612 |
| Consecrated By: | Fabrizio Verallo |
| Death Date: | 9 January 1615 |
| Death Place: | Rossano, Italy |
Mario Sassi (died 1615) was a Roman Catholic prelate who served as Archbishop of Rossano (1612–1615).[1]
On 26 November 1612, Mario Sassi was appointed during the papacy of Pope Paul V as Archbishop of Rossano.[2] On 9 December 1612, he was consecrated bishop by Fabrizio Verallo, Bishop of San Severo, with Antonio d'Aquino, Bishop of Sarno, and Francesco Cennini de' Salamandri, Bishop of Amelia, serving as co-consecrators. He served as Archbishop of Rossano until his death on 9 January 1615.