Borj El Ksar (Arabic: برج القصر) is one of the fortifications of the medina of Sfax.
The presence of arches very similar to those of the Great Mosque, the Kasbah and the entrance of fondouk El Haddadine supports this hypothesis.
They are connected by allies and courtyards that have disappeared because of illegal constructions within the medina.
It is centered on a north-west / south-east main street where, at the southern end, is a small capped alley called Sbat El Ksar.
The latter has two doors separated by a courtyard and which, closed, isolate Borj El Ksar from the rest of the medina.