The Ao languages are a small family of Tibeto-Burman languages

Tibeto-Burman languages

The Tibeto-Burman languages are the non-Chinese members of the Sino-Tibetan language family, over 400 of which are spoken thoughout the highlands of southeast Asia, as well as lowland areas in Burma ....

 spoken by the Ao people

Ao people

The Ao are a Naga people of Nagaland in northeast India. Their main territory is from Tsula Valley in the east to Tsurang Valley in Mokokchung District...

 of Nagaland

Nagaland

Nagaland is a state in the far north-eastern part of India. It borders the state of Assam to the west, Arunachal Pradesh and part of Assam to the north, Burma to the east and Manipur to the south. The state capital is Kohima, and the largest city is Dimapur...

 in northeast India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

. Conventionally classified as "Naga", they are not clearly related to other Naga languages, and are conservatively classified as an independent branch of Tibeto-Burman, pending further research.

There are six known Ao languages:

• Chungli Ao
• Mongsen Ao
• Sangtam ('Thukumi')
• Yimchungrü
  Yimchungrü language
  Yimchungrü is a Naga language of northeast India, spoken by the Yimchunger people....
  
   ('Yachumi')
• Lotha
  Lotha language
  The Lotha language is spoken by approximately 80,000 people in the northeastern Indian state of Nagaland. It is centered in the small district of Wokha . This district has many villages such as Merapani, Englan, Pakti and others, where the language is widely spoken and studied...
  
   (Lhota),

plus undescribed 'dialects' which may turn out to be separate languages (see Mongsen Ao).