| Type: | Bishop |
| Honorific-Prefix: | Most Reverend |
| Caesar Reghini | |
| Church: | Catholic Church |
| Diocese: | Diocese of Sarsina |
| Term: | 1646–1658 |
| Predecessor: | Carlo Bovi |
| Successor: | Francesco Caetani |
| Consecration: | 16 December 1646 |
| Consecrated By: | Marcantonio Franciotti |
| Birth Date: | 1581 |
| Birth Place: | Pontremoli, Italy |
| Death Date: | 1658 (age 77) |
| Death Place: | Sarsina, Italy |
Caesar Reghini (1581–1658) was a Roman Catholic prelate who served as Bishop of Sarsina (1646–1658).
Caesar Reghini was born in Pontremoli, Italy in 1581.On 3 December 1646, he was appointed Bishop of Sarsina by Pope Innocent X.On 16 December 1646, he was consecrated bishop by Marcantonio Franciotti, Cardinal-Priest of Santa Maria della Pace, with Luca Torreggiani, Archbishop of Ravenna, and Ranuccio Scotti Douglas, Bishop of Borgo San Donnino, serving as co-consecrators.
He served as Bishop of Sarsina until his death in 1658.