Souk Ahras (Arabic: ولاية سوق أهراس) is a province (wilaya) in the Aures region in Algeria, named after its capital, Souk Ahras. It stands on the border between Algeria and Tunisia. In 2008, Souk Ahras had a population of 440,299 people.
Souk Ahras is situated in the extreme north east of Algeria. Its area is 4360 km2.
Its border to the north is the province of El Taref; in the east is Tunisia; westward is the province of Guelma and the province of Oum el Bouaghi; in the south the province of Tebessa. Its geography is composed of three distinct areas, with a mountainous north, the central region being lowlands, and the south being fertile.
The city of Souk Ahras has a semi continental and humid climate, heavy rains in the north in winter and very hot and dry in the south during summer. The rains are 350–750 mm/year and the temperatures vary from 1 °C to 14 °C in winter and from 25 °C to 38 °C in summer.
The fauna is very rich in Souk Ahras, where species such as the hare, partridge, fox, sparrow, ferret, porcupine and barbarian hart can be found. The flora as well is very rich, with species such as:
The most important activities in this region are: agriculture, breeding and com cultivation. The total area is about 436,000 hectares. 235,000 hectares are consecrated to agriculture.