| Type: | Bishop |
| Honorific-Prefix: | Most Reverend |
| Marco Antonio Marescotti | |
| Bishop of Chiusi | |
| Church: | Catholic Church |
| Diocese: | Diocese of Chiusi |
| Term: | 1664–1681 |
| Predecessor: | Alessandro Piccolomini |
| Successor: | Lucio Borghesi |
| Ordination: | 2 February 1664 |
| Birth Date: | 29 April 1625 |
| Death Date: | 8 December 1681 (age 56) |
| Death Place: | Chiusi, Italy |
Marco Antonio Marescotti (29 April - 8 December 1681) was a Roman Catholic prelate who served as Bishop of Chiusi (1664–1681).[1]
Marco Antonio Marescotti was born in Siena, Italy and ordained a priest on 2 February 1664.[2] On 11 February 1664, Alessandro Piccolomini was appointed during the papacy of Pope Alexander VII as Bishop of Chiusi. He served as Bishop of Chiusi until his death on 8 December 1681.