Assamese is the official language of Assam and is spoken by the majority of the population.

Bengali is spoken by a significant portion of the population in Assam, particularly in the Barak Valley region.

Bodo is the language spoken by the Bodo people, one of the largest ethnic groups in Assam.

Dimasa is the language spoken by the Dimasa people, an ethnic group native to Assam.

Karbi is the language spoken by the Karbi people, an ethnic group primarily found in Assam.

Mising is the language spoken by the Mising people, an ethnic group native to Assam.

Rabha is the language spoken by the Rabha people, an ethnic group found in Assam and parts of West Bengal.

Tiwa is the language spoken by the Tiwa people, an ethnic group primarily found in Assam.

Deori is the language spoken by the Deori people, an ethnic group native to Assam.

Sonowal Kachari is the language spoken by the Sonowal Kachari people, an ethnic group found in Assam.

Tai Phake is the language spoken by the Tai Phake people, an ethnic group originally from Myanmar but now found in Assam.

Ahom is the language spoken by the Ahom people, a Tai-speaking ethnic group native to Assam.

Khamti is the language spoken by the Khamti people, an ethnic group found in Assam and Arunachal Pradesh.

Singpho is the language spoken by the Singpho people, an ethnic group found in Assam and Arunachal Pradesh.

Deori is the language spoken by the Deori people, an ethnic group native to Assam.