Here are the main Batak languages:
* Toba Batak: This is the most widely spoken Batak language, with an estimated 1.6 million speakers. It is spoken in the Toba region of North Sumatra.
* Mandailing Batak: With around 800,000 speakers, it is spoken in the Mandailing region of North Sumatra.
* Angkola Batak: This language has approximately 600,000 speakers and is spoken in the Angkola region of North Sumatra.
* Simalungun Batak: Spoken by about 500,000 people, it is primarily found in the Simalungun region of North Sumatra.
* Karo Batak: With around 400,000 speakers, it is spoken in the Karo region of North Sumatra.
* Pakpak Batak: This language is spoken by approximately 100,000 people in the Pakpak region of North Sumatra.
* Alas Batak: Spoken by around 70,000 people, it is found in the Alas region of North Sumatra.
* Dairi Batak: This language is spoken by around 60,000 people in the Dairi region of North Sumatra.
It's important to note that:
* While the Batak languages are closely related, they are not mutually intelligible. This means that speakers of different Batak languages cannot understand each other without learning the other language.
* Many Batak people also speak Indonesian, the official language of Indonesia.
The Batak languages are rich and complex, and they play an important role in preserving the cultural heritage of the Batak people.