Bagobo (also known as Giangan, Clata, Atto, Eto, Guanga, Gulanga, Jangan) is an Austronesian language of the southern Philippines. It is spoken on the eastern slopes of Mount Apo in Davao del Sur Province, as well as in Davao City (Ethnologue). They occupy a very small territory stretching from Catalunan to Calinan within Davao City. Their traditional population centers included the following barangays (see also Districts of Davao City).