The Diocese of Cloyne is a Roman Catholic diocese located in County Cork, Ireland. It was established in the 12th century and is part of the ecclesiastical province of Cork. The diocese covers a diverse area, including towns such as Cloyne, Midleton, and Cobh. The diocese is governed by a bishop, who oversees the spiritual and administrative needs of the local Catholic community. The current bishop is William Crean, who has served since 2013. The Diocese of Cloyne is known for its rich history and commitment to education and social services within the region.