|southern Borneo, Madagascar, Southern Philippines|
The Barito languages are around twenty Austronesian languages of Borneo, Southern Philippines, plus Malagasy, the national language of Madagascar. They are named after the Barito River.
The Barito subgroup was first proposed by Hudson (1967), comprising the three branches East Barito, West Barito, and Mahakam (Barito–Mahakam). It is thought by some to be a Sprachbund rather than a genuine clade. For example, Adelaar (2005) rejects Barito as a valid group despite accepting less traditional groups such as North Bornean and Malayo-Sumbawan.
The Malagasy language originates from the Southeast Barito languages, and Ma'anyan is its closest relative, with numerous Malay and Javanese loanwords. It known that Ma'anyan people were brought as labourers and slaves by Malay and Javanese people in their trading fleets, which reached Madagascar by ca. 50–500 AD.
Blust (2006) proposes that the Sama-Bajaw languages also derive from the Barito lexical region, though not from any established group, and Ethnologue has followed, calling the resulting group 'Greater Barito'.
Smith (2017, 2018) proposes a Greater Barito linkage with the following branches, and considers Basap to be a sister of the Greater Barito linkage, forming a Basap–Greater Barito group.
Main article: List of Dayak groups of West Kalimantan
Some Barito-speaking Dayak ethnic subgroups and their respective languages in West Kalimantan province, Indonesia: