The Diocese of Ploaghe (Latin: Dioecesis Plovacensis) was a Roman Catholic diocese located in the town of Ploaghe in the Province of Sassari in the Italian region Sardinia. Estalished in the 12th century, it was a suffragan (subordinate) of the metropolitan of Torres (Sassari). In 1503, the diocese was suppressed, by order of Pope Julius II.
Ploaghe is mentioned as a suffragan of Torres in the Luber Censuum of the late 12th century. [1]
Suppressed: 1503