However, some of the most common languages spoken in Sumatra include:
* Indonesian: The official language of Indonesia, widely spoken across the island.
* Minangkabau: Predominantly spoken in West Sumatra.
* Acehnese: Spoken in Aceh province.
* Batak: A group of languages spoken in North Sumatra, including Toba Batak, Karo Batak, and Simalungun Batak.
* Malay: Spoken in parts of Riau and Jambi provinces.
* Lampung: Spoken in Lampung province.
It's important to note that many other languages and dialects are spoken in Sumatra, reflecting the island's rich cultural and linguistic diversity.