Languages of the Caucasus

The languages of the Caucasus are languages spoken by more than ten million people in the Caucasus region of Eastern Europe and Western Asia, between the Black Sea and the Caspian Sea.

Some of those language families have no known members outside the Caucasus area. The term Caucasian languages may mean either only those families or all languages that are historically spoken in that area.

 Other websites 

 Comparative Notes on Hurro-Urartian, Northern Caucasian and Indo-European  by V. V. Ivanov
 An overview of languages of the Caucasus