The Cyrillic script ( sih-RIL-ik), otherwise known as the Slavonic script or simply the Slavic script, is a writing system used for various languages across Eurasia. It is the designated national script in various Slavic, Turkic, Mongolic, Uralic, Caucasian and Iranic-speaking countries in Southeastern Europe, Eastern Europe, the Caucasus, Central Asia, North Asia, and East Asia.

As of 2019, around 250 million people in Eurasia use Cyrillic as the official script for their national languages, with Russia accounting for about half of them. With the accession of Bulgaria to the European Union on 1 January 2007, Cyrillic became the third official script of the European Union, following the Latin and Greek alphabets.

The Early Cyrillic alphabet was developed during the 9th century AD at the Preslav Literary School in the First Bulgarian Empire during the reign of tsar Simeon I the Great, probably by disciples of the two Byzantine brothers Saint Cyril and Saint Methodius, who had previously created the Glagolitic script. The script is named in honor of Saint Cyril.

Faux Cyrillic, pseudo-Cyrillic, pseudo-RussianJen Chen, "Sweater Hip Check", The Pitch (Kansas City), February 15, 2007 online or faux Russian typography is the use of Cyrillic letters in Latin text, usually to evoke the Soviet Union or Russia, though it may be used in other contexts as well. It is a common Western trope used in book covers, film titles, comic book lettering, artwork for computer games, or product packaging"American Perceptions of Vodka Shaken, Not Stirred: An Analysis of the Importance of Vodka’s Foreign Branding Cues and Country-of-Origin Information", Jon Kurland, October 26, 2004 full text which are set in or wish to evoke Eastern Europe, the Soviet Union, or Russia.