Siliana Governorate (Arabic: ولاية سليانة) is one of the twenty-four governorates (provinces) of Tunisia. It is situated in northern Tunisia. It covers an area of 4,631 km² and has a population of 234,000 (2004 census). The capital is Siliana. Arabic ( or just ) is the largest living member of the Semitic language family in terms of speakers. ... Siliana is a town in northern Tunisia. ...