Ibero-Caucasian languages
Caucasian languages - several possibly unrelated families of languages, spoken on Caucasus.
- South caucasian languages or Kartvelian languages
- Northwest caucasian languages or Abkhaz-Adyg languages
- Northeast caucasian languages or Dagestan languages
- North central caucasian languages or Nakh languages or Vaynakh languages
The last two groups sometimes are called Nakh-Dagestan languages