  Shown within Tunisia | |
| Location | Tunisia |
|---|---|
| Region | Kasserine Governorate |
| Coordinates | 35°10′00″N 8°50′00″E / 35.166667°N 8.833333°E |
Scillium is an ancient city in the Roman province of Africa Proconsularis, Scillium must not be confounded with Silli, or Sililli, in Numidia, the situation of which is unknown[1] nor, as Albert Battandier does,[2] identified with Kasrin, which is Cillium, a see of Byzantium. Its episcopal see was a suffragan of the see of Carthage, capital of the province.