The Diocese of Cingoli was a Roman Catholic diocese in Italy.
It was founded in the fifth century and in 1725 merged with the Diocese of Osimo to form the Diocese of Osimo e Cingoli.[1]
It was contained within the Papal States.[2]
This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed (1913). Catholic Encyclopedia. Robert Appleton Company.