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Which Slavic languages use the Cyrillic alphabet?

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Map of Europe showing the geographic distribution of Slavic languages, color-coded by language group: East Slavic (Russian, Ukrainian, Belarusian), West Slavic (Polish, Kashubian, Czech, Slovak, Sorbian), and South Slavic (Bosnian-Croatian-Montenegrin-Serbian, Slovene, Bulgarian, Macedonian). Striped areas indicate regions where bilingualism is common. — Slavic languages Distribution of the Slavic languages in Europe.

The Cyrillic alphabet is used by several Slavic languages, primarily those associated with the Eastern Orthodox tradition. Among the Slavic languages that utilize this script are:1

East Slavic languages: Russian, Ukrainian, and Belarusian.12
South Slavic languages: Bulgarian, Macedonian, Serbian, and Montenegrin.12

While the Glagolitic alphabet was the first writing system developed for Slavic speakers, it was gradually replaced by the Cyrillic alphabet starting in the 10th century. Other Slavic languages, such as Polish, Czech, and Slovak, utilize the Latin alphabet instead.2