| Type: | Bishop |
| Gaetano Bonicelli | |
| Archbishop of the Archdiocese of Siena–Colle di Val d'Elsa–Montalcino (emeritus) | |
| Church: | Roman Catholic Church |
| See: | Roman Catholic Archdiocese of Siena–Colle di Val d'Elsa–Montalcino |
| Consecration: | 26 August 1975 |
| Consecrated By: | Antonio Poma |
| Birth Date: | 13 December 1924 |
| Birth Place: | Vilminore di Scalve, Province of Bergamo, Kingdom of Italy |
| Coat Of Arms: | Coat of arms of Gaetano Bonicelli.svg |
Gaetano Bonicelli (born 13 December 1924) is an Italian Catholic prelate, archbishop of Siena-Colle di Val d'Elsa-Montalcino (from 1989 to 2001).
Gaetano Bonicelli was ordained as a priest on 22 May 1948, and was ordained to the clergy of the bishopric. After missionary work in Belgium in 1965, he became director of the Italian Bureau of Emigration and Tourism. In 1973, Bonicelli rose to the position of Assistant Secretary of the Conference of Italian Bishops.
On 28 October 1981, Pope John Paul II appointed him Titular Archbishop of Italica and Archbishop of the Italian Military Ordinariate, and on 14 November 1989, Archbishop of Siena-Colle di Val d'elza-Montalcino.
On 23 May 2001, Gaetano announced his retirement due to age. Since then, Gaetano Bonicelli has been living in a pilgrim's house in Stezzano, near Bergamo.[1]