The Diocese of Buea (Latin: Dioecesis Bueaensis) is a Latin Church diocese located in the city of Buea in the ecclesiastical province of Bamenda in Cameroon.

On January 5, 2021, Bishop Michael Miabesue Bibi, auxiliary bishop of the Archdiocese of Bamenda, was appointed Bishop of this diocese.

He had been its Apostolic Administrator since December 28, 2019.