| Type: | Bishop |
| Honorific-Prefix: | The Most Reverend |
| Eustachio Locatelli | |
| Bishop of Reggio Emilia | |
| Church: | Catholic Church |
| Diocese: | Diocese of Reggio Emilia |
| Term: | 1569–1575 |
| Predecessor: | Giambattista Grossi |
| Successor: | Francesco Martelli |
| Consecration: | 29 April 1569 |
| Consecrated By: | Scipione Rebiba |
| Death Date: | 1575 |
| Death Place: | Reggio Emilia, Italy |
Eustachio Locatelli (died 1575) was a Roman Catholic prelate who served as Bishop of Reggio Emilia (1569–1575).[1]
Locatelli was ordained a priest in the Order of Preachers.[2] On 15 April 1569, he was appointed during the papacy of Pope Pius V as Bishop of Reggio Emilia.On 29 April 1569, he was consecrated bishop by Scipione Rebiba, Cardinal-Priest of Sant'Angelo in Pescheria, with Antonio Ganguzia, Bishop of Vieste, and Felice Peretti Montalto, Bishop of Sant'Agata de' Goti, serving as co-consecrators. He served as Bishop of Reggio Emilia until his death on 14 October 1575.
While bishop, he was the principal co-consecrator of: Maurice MacBrien, Bishop of Emly (1571); Vincenzo de Doncelli, Bishop of Valva e Sulmona (1571); and Pietro Cancellieri, Bishop of Lipari (1571).