Hilta was an ancient city and former bishopric in Roman Africa, in the north of modern Tunisia.
It is now a Latin Catholic titular see.
Hilta was important enough in the Roman province of Africa Proconsularis, in the papal sway, to become a suffragan bishopric of its capital Carthage's Metropolitan Archbishop, but later faded, presumably under the 7th century advent of Islam.
It has had three historically documented bishops : The diocese was nominally restored in 1933 as a Latin Catholic titular bishopric of Hilta (Latin) / Ilta (Curiate Italian) / Hilten(sis) (Latin adjective).
It has had the following incumbents, so far of the fitting Episcopal (lowest) rank :