The Diocese of Osimo was a Roman Catholic diocese in Italy.
It was founded in the seventh century and in 1725 merged with the Diocese of Cingoli to form the Diocese of Osimo e Cingoli.
It was contained within the Papal States.
Erected: 7th Century
Latin Name: Auximanus
Bernardino de Cupis (24 Aug 1551 - 1574 Resigned)Cornelio Firmano (9 Jan 1574 - 5 Jul 1588 Died)Antonio Maria Gallo (19 Jul 1591 - 30 Mar 1620 Died)Agostino Galamini, O.P. (29 Apr 1620 - 6 Sep 1639 Died)Girolamo Verospi (10 Feb 1642 - 5 Jan 1652 Died)Lodovico Betti (1 Jul 1652 - 1655 Died)Antonio Bichi (6 Mar 1656 - 21 Feb 1691 Died)Opizio Pallavicini (8 Aug 1691 - 11 Feb 1700 Died)Michelangelo dei Conti (28 Jan 1709 - 1 Aug 1712 Appointed, Archbishop (Personal Title) of Viterbo e Tuscania)Orazio Filippo Spada (17 Jan 1714 - 28 Jun 1724 Died)Agostino Pipia, O.P. (20 Dec 1724 - Jan 1726 Resigned)19 August 1725: United with the Diocese of Cingoli
Immediately Subject to the Holy See
Pier Secondo Radicati de Cocconato (12 Apr 1728 - 1 Dec 1729 Died)Ferdinando Agostino Bernabei, O.P. (23 Dec 1729 - 10 Mar 1734 Died)Giacomo Lanfredini (27 Mar 1734 - 15 Sep 1740 Resigned)Pompeo Compagnoni (16 Sep 1740 - 25 Jul 1774 Died)Guido Calcagnini (20 May 1776 - 27 Aug 1807 Died)Giovanni Castiglione (11 Jan 1808 - 9 Jan 1815 Died)Carlo Andrea Pelagallo (18 Dec 1815 - 6 Sep 1822 Died)Ercole Dandini (10 Mar 1823 - 23 May 1824 Resigned)Timoteo Maria (Antonio) Ascensi, O.C.D. (21 May 1827 - 6 Dec 1828 Died)Giovanni Antonio Benvenuti (15 Dec 1828 - 14 Nov 1838 Died)Giovanni Soglia Ceroni (18 Feb 1839 - 4 Jun 1848 Appointed, Secretary of State)Giovanni Brunelli (18 Sep 1856 - 21 Feb 1861 Died)Salvatore Nobili Vitelleschi (21 Dec 1863 - 20 Nov 1871 Resigned)Michele Seri-Molini (24 Nov 1871 - 13 Apr 1888 Died)Egidio Mauri, O.P. (1 Jun 1888 - 12 Jun 1893 Appointed, Archbishop of Ferrara)Giovanni Battista Scotti (18 May 1894 - 5 Dec 1916 Died)Pacifico Fiorani (12 May 1917 - 22 Jun 1924 Died)Monalduzio Leopardi (20 Dec 1926 - 17 May 1944 Died)Domenico Brizi (22 Jan 1945 - 11 Feb 1964 Died)Carlo Maccari (28 Sep 1972 - 30 Sep 1986 Appointed, Archbishop of Ancona-Osimo)25 January 1985: The former Diocese of Cingoli was split from the Diocese of Osimo e Cingoli and united with the Diocese of Macerata e Tolentino, the Diocese of Recanati, and the Diocese of San Severino (-Treia) to form the Diocese of Macerata-Tolentino-Recanati-Cingoli-Treia.
30 September 1986: the Diocese of Osimo was united with the Archdiocese of Ancona to form the Archdiocese of Ancona-Osimo
