| Type: | Bishop |
| Pellegrino Tomaso Ronchi | |
| Church: | Roman Catholic Church |
| See: | Diocese of Città di Castello |
| Term: | 1991–2007 |
| Predecessor: | Carlo Urru |
| Successor: | Domenico Cancian |
| Ordination: | 21 March 1953 |
| Consecration: | 6 January 1985 |
| Consecrated By: | Pope John Paul II |
| Birth Date: | 19 January 1930 |
| Birth Place: | Riolo Terme, Italy |
| Death Place: | Perugia, Italy |
| Previous Post: | Diocese of Porto-Santa Rufina |
Pellegrino Tomaso Ronchi (19 January 1930 – 24 October 2018) was an Italian bishop, emeritus of the Diocese of Città di Castello.
He was ordained a priest on 21 March 1953. He first was appointed bishop of the Diocese of Porto-Santa Rufina on 7 December 1984, receiving his episcopal consecration on 6 January 1985 from Pope John Paul II.He then resigned from this position, due to illness problem, on 9 November 1985. Later he was appointed bishop of Diocese of Città di Castello on 7 February 1991. Ronchi retired as bishop on 16 June 2007.[1]