Bulnensis also known as Bulna is a titular episcopal see of the Roman Catholic Church^[1] ascribed to ^[2] the ecclesiastical province of Africa Proconsularis, as a suffragan of the Archdiocese of Carthage.^[3][4]

Very little is known of the ancient diocese. The bishopric is mentioned by Optatus of Milevi^[5] who lists the bishop Victor with the Proconsularis bishops at a council of 646. No other bishops are known to us and even the location of Bulna is not known, though doubtless it was in Tunisia.