Ubaza was an Ancient city and bishopric in Roman North Africa, which remains a Latin titular see.
Ubaza was among the many towns in the Roman province of Numidia that were important enough to become a suffragan bishopric, but faded. Its present location is in modern Terrebaza, Algeria.
Its only recorded residential Bishops both attended the council called in 411 AD at Carthage by Huneric of the Vandal kingdom :
The diocese was nominally restored in 1928 as Latin Titular bishopric of Ubaza (Latin = Curiate Italian) / Ubazen(sis) (Latin adjective).
It has had the following incumbents, so far of the fitting Episcopal (lowest) rank :