Ghardimaou (Arabic: غار الدماء‎) is a town in the north-west of Tunisia about 192 km from Tunis. It belongs to the Jendouba Governorate. The town has about 64,000 inhabitants (64,170 in 2014). The rail line from Tunis passing along the Medjerda river ends at Ghardimou; it was built in 1878, and formerly crossed eastwards the border into Algeria.