Con algunas variaciones, la escritura cirílica es usada por los siguientes idiomas: Slavic, Altaic, Uralic, and Caucasian languages: Abazin, Adyghe, Awar, Azerbaijani, Balkar, Bashkir, Belorussian, Bulgarian, Buryat, Chechen, Dargin, Dungan, Ingushian, Kalmyck, Karakalpak, Kazakh, Kirghiz, Komi, Kumykish, Lakish, Lezgi, Macedonian, Mordovin-Erzya, Mordovin-Moksha, Nanai, Nents, Nivkh, Nogai, Russian, Selkup, Serbian, Tabassaran, Tajniki, Tatar, Turkmen, Tuvin, Uighur, Ukranian, and Uzbek.