| Type: | Bishop |
| Honorific-Prefix: | Most Reverend |
| Giovanni Antonio Onorati | |
| Bishop of Terni | |
| Church: | Catholic Church |
| Diocese: | Diocese of Terni |
| Term: | 1591 - 1606 |
| Predecessor: | Girolamo Petroni |
| Successor: | Ludovico Riva |
| Consecration: | 30 November 1591 |
| Consecrated By: | Girolamo Bernerio |
| Death Date: | 1606 |
| Death Place: | Terni, Italy |
Giovanni Antonio Onorati (died 1606) was a Roman Catholic prelate who served as Bishop of Terni (1591 - 1606).[1]
On 20 November 1591, Giovanni Antonio Onorati was appointed during the papacy of Pope Innocent IX as Bishop of Terni.[2] On 30 November 1591, he was consecrated bishop by Girolamo Bernerio, Bishop of Ascoli Piceno, with Galeazzo Moroni, Bishop of Macerata e Tolentino, and Ottavio Abbiosi, Bishop of Pistoia, serving as co-consecrators. He served as Bishop of Terni until his death in 1606.