| Type: | Bishop |
| Honorific-Prefix: | Most Reverend |
| Alessandro Porro | |
| Bishop of Bobbio | |
| Church: | Catholic Church |
| Diocese: | Diocese of Bobbio |
| Term: | 1650–1660 |
| Predecessor: | Francesco Maria Abbiati |
| Successor: | Bartolomeo Capra |
| Consecration: | 21 Dec 1650 |
| Consecrated By: | Marcantonio Franciotti |
| Birth Date: | 1600 |
| Birth Place: | Milan, Italy |
| Death Date: | 15 Sep 1660 (age 60) |
Alessandro Porro, C.R. (1600–1660) was a Roman Catholic prelate who served as Bishop of Bobbio (1650–1660).
Alessandro Porro was born in 1600 in Milan, Italy and ordained a priest in the Congregation of Clerics Regular of the Divine Providence.On 5 Dec 1650, he was appointed during the papacy of Pope Innocent X as Bishop of Bobbio.On 21 Dec 1650, he was consecrated bishop by Marcantonio Franciotti, Cardinal-Priest of Santa Maria della Pace, with Gasparo Cecchinelli, Bishop of Corneto e Montefiascone, and Giovanni Tommaso Pinelli, Bishop of Molfetta, serving as co-consecrators.He served as Bishop of Bobbio until his death on 15 Sep 1660.