The East Barito languages are a group of a dozen Dayak

Dayak languages

The term Dayak is used for the languages of the Dayak people; that is, those languages of Borneo apart from varieties of Malay and language of Chinese, Indian, and European origin...

 (Austronesian

Austronesian languages

The Austronesian languages are a language family widely dispersed throughout the islands of Southeast Asia and the Pacific, with a few members spoken on continental Asia that are spoken by about 386 million people. It is on par with Indo-European, Niger-Congo, Afroasiatic and Uralic as one of the...

) languages of Borneo

Borneo

Borneo is the third largest island in the world and is located north of Java Island, Indonesia, at the geographic centre of Maritime Southeast Asia....

, and most famously Malagasy

Malagasy language

Malagasy is the national language of Madagascar, a member of the Austronesian family of languages. Most people in Madagascar speak it as a first language as do some people of Malagasy descent elsewhere.-History:...

, the national language of Madagascar

Madagascar

The Republic of Madagascar is an island country located in the Indian Ocean off the southeastern coast of Africa...

. They are named after the Barito River

Barito River

Barito is a 890 km long river, located in South Kalimantan, Indonesia. It originates in the Muller Mountain Range from where it flows southward into the Java Sea...

.

The languages are,

• Central–South
  • Dusun Deyah
  • South: Dusun Malang, Dusun Witu, Ma'anyan
    Ma'anyan language
    Ma'anyan or Ma'anjan or Maanyak Dayak is an Austronesian language belonging to the East Barito languages. It is spoken by about 150,000 Ma'anyan people living in the central Kalimantan, Indonesia. It is closely related to Malagasy languages spoken in Madagascar...
    
    , Paku
• Malagasy
  Malagasy language
  Malagasy is the national language of Madagascar, a member of the Austronesian family of languages. Most people in Madagascar speak it as a first language as do some people of Malagasy descent elsewhere.-History:...
  
   (incl. Bushi
  Bushi language
  Bushi, Shibushi, or Kibushi is a language spoken in Madagascar and the French-ruled Comorian islands of Mayotte. In 1995, it was spoken by 806,200 people .-Madagascar Bushi:...
  
   on Mayotte
  Mayotte
  Mayotte is an overseas department and region of France consisting of a main island, Grande-Terre , a smaller island, Petite-Terre , and several islets around these two. The archipelago is located in the northern Mozambique Channel in the Indian Ocean, namely between northwestern Madagascar and...
  
  )
• North: Lawangan
  Lawangan language
  Lawangan is an Austronesian language bellonging to East Barito languages. It is spoken by about 100 000 Lawangan people living in the central Kalimantan, Indonesia....
  
  , Tawoyan

Several of the languages are named 'Dusun' because they are spoken by the Dusun

Dusun

Dusun is the collective name of a tribe or ethnic and linguistic group in the Malaysian state of Sabah of North Borneo. Due to similarities in culture and language with the Kadazan ethnic group, a new unified term called "Kadazan-Dusun" was created. Collectively, they form the largest ethnic group...

 people; they are not to be confused with the Dusunic languages

Dusunic languages

The Dusunic languages are a group of languages spoken by the Bisaya, Dusun, Kadazan, Rungus, and related peoples in the Malaysian province of Sabah on Borneo.-Languages:The languages are divided as follows, per Ethnologue 15:...

, which are also spoken by the Dusun.