Coordinates: 35°52′24″N 8°47′13″E / 35.873444°N 8.786861°E
Althiburos is a Tunisian archaeological site located in the governorate of Kef, more precisely in the Dahmani delegation, ~9 kilometres (5.6 mi) southwest of the town of Medeina, on the Mt. Ouartane plateau.
Althiburos, was at the border with Numidia, at the confluence of the Oum-el-Abid and the Medeine Rivers in the village of Fej El Tamar.
The city of was originally Berber and a Punic inscription was found there (now at the Louvre Museum), fell under the influence of Carthage, and then to Rome. It was a municipality in the second century under Adrià (Municipium Aelium Hadrianum Augustum Althiburitanum ) and later obtained the Italian law. It was the seat of a Christian bishop from the 4th century to the 7th century and later disappeared, and under the Arabs a new population emerged in Ebba Ksour, on the plain. The site was kept intact and was discovered by travelers in the 18th century.