Udi (also called Uti or Udin)[3] is a language spoken by the Udi people and a member of the Lezgic branch of the Northeast Caucasian language family.

[4] It is believed an earlier form of it was the main language of Caucasian Albania, which stretched from south Dagestan to current day Azerbaijan.

It is also spoken by ethnic Udis living in the villages of Debetavan, Bagratashen, Ptghavan, and Haghtanak in Tavush Province of northeastern Armenia, and in the village of Zinobiani (former Oktomberi) in the Qvareli Municipality of the Kakheti province of Georgia.

A primer and two collections of works by Georgy Kechaari were published using it and it was also used for educational purposes in the village of Nic.

The alphabet is as follows:[16] In 2007 in Astrakhan, Vladislav Dabakov published a collection of Udi folklore with a Latin-based alphabet as follows: In 2013 in Russia, an Udi primer, Nanay muz (Нанай муз), was published with a Cyrillic-based alphabet, a modified version of the one used by V. L. Gukasyan in the Udi-Azerbaijani-Russian Dictionary.