The Diourbel Region (Serer and Cangin: Jurbel) is a region of Senegal. The regional capital is the city of Diourbel. The region corresponds roughly to the precolonial Kingdom of Bawol and is still called by that name. Bawol (or Baol) is an ancient kingdom formerly ruled by the Joof family, one of the members of the Serer ethnic group found in Senegambia.