Decoriana (Decoriensisor Dicensis) was an ancient Roman–Berber city and former bishopric in Tunisia.
[1][2][3][4][5] Decoriana, in today's Tunisia, was important enough in the Roman province of Byzacena to become one of the many suffragans of its capital Hadrumetum's Metropolitan Archbishop, [6] yet it was to fade.
There are only two known ancient bishops of this diocese.
The diocese was nominally restored in 1933, as a Latin Catholic titular bishopric Decoriana.
It has had the following incumbents, all of the lowest (episcopal) rank: