El Fahs (Arabic: الفحص, [lfɑħs(ˁ)]) is a town and commune located in the Zaghouan Governorate, 60 kilometers south-west of Tunis, Tunisia.

The town was the site of a World War II battle during the Tunisia Campaign.

This is because it was known to be the biggest center of public medical examination for nearby regions, near the Roman era bridge (supposedly under the Ottoman rule).

The reason is that the French usually prefix a lot of urban gatheringsˈ and large towns' names by "Pont d'(e)-".

The proof being the French construction of the 'famous' railway in El Fahs, which represented and still symbolyses the first manifestations of urbanization in the city.