The Nakh-Daghestanian languages are a small family of languages spoken primarily in the North Caucasus region of Russia. This language family includes two main branches: the Nakh languages, which consist of Chechen and Ingush, and the Daghestanian languages, which include several languages such as Avar, Tuvan, and Lezgian. These languages are known for their complex phonetic systems and rich morphology. They are primarily spoken by the Chechen and Ingush people, as well as various ethnic groups in Dagestan. The languages are characterized by a high degree of consonant clusters and a variety of grammatical cases.