These are the Balto-Slavic languages categorized by sub-groups, including number of speakers.
Baltic languages
Latvian, 1.75 million speakers (2015) Latgalian, 164,000 speakers (2021) Lithuanian, 3 million speakers (2012)
West Slavic languages
Polish, 55 million speakers (2010) Kashubian Czech, 10.6 million speakers (2012) Slovak, 5.2 million speakers (2011–12) Sorbian, ca. 50,000 speakers ()
South Slavic languages
Serbo-Croatian, 21 million speakers (), including second language speakers Bosnian, Croatian, Serbian and Montenegrin standards with dialectal differences Bulgarian, 9 million (2005–12) Slovene, 2.5 million speakers (2010) Macedonian, 1.4–3.5 million speakers (1986–2011) Church Slavonic (liturgical)
East Slavic languages
Russian, 150 million speakers (2010), 260 million including L2 (2012) Ukrainian, 45 million speakers (2007) Belarusian, 3.2 million speakers (2009) Rusyn
Extinct languages Proto-Balto-Slavic language
Slavic Proto-Slavic Old Church Slavonic, liturgical Knaanic, Jewish language Old Novgorod dialect Old East Slavic, developed into modern East Slavic languages Old Ruthenian Polabian language Pomeranian language, only Kashubian remains as a living dialect South Slavic dialects used in medieval Greece
Baltic Proto-Baltic Curonian Old Prussian Selonian Semigallian Sudovian Dnieper-Oka Golyad Pomeranian Baltic West Galindian
See also Outline of Slavic history and culture List of Slavic studies journals
Notes
References
External links