The Azerbaijani language, also called Azeri, or Azerbaijani Turkish is a Turkic language that is spoken in Azerbaijan and northwestern Iran. Azerbaijani is the official language of the Republic of Azerbaijan and the Republic of Dagestan in Russia.

Azerbaijani is also spoken in Dagestan (a republic of Russia), south-eastern and eastern Georgia, north eastern Turkey and in some parts of Ukraine and in northwestern Iran. In Dagesten, there are over 30 different languages, and Russian is used as a lingua franca.