The Roman Catholic Diocese of Covington (Latin: Dioecesis Covingtonensis) is a Roman Catholic diocese in Northern Kentucky, covering 3,359 square miles (8,700 km2) that includes the city of Covington and the Kentucky counties of Boone, Kenton, Campbell, Gallatin, Carroll, Grant, Owen, Pendleton, Harrison, Bracken, Robertson, Mason, Fleming, and Lewis. The cathedral church of the diocese is the Cathedral Basilica of the Assumption. On July 13, 2021 Pope Francis appointed Monsignor John Iffert, a priest of the Diocese of Belleville, as bishop-elect of Covington.