These are the

Balto-Slavic The Balto-Slavic languages form a branch of the Indo-European family of languages, traditionally comprising the Baltic and Slavic languages. Baltic and Slavic languages share several linguistic traits not found in any other Indo-European branc ...

languages categorized by sub-groups, including number of speakers.

Baltic languages

* Latvian, 1.75 million speakers (2015) * Latgalian, 200 000 speakers (2009) * Lithuanian, 3 million speakers (2012)

West Slavic languages

Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken *Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwr ...

, 55 million speakers (2010) * Kashubian *

Czech Czech may refer to: * Anything from or related to the Czech Republic, a country in Europe ** Czech language ** Czechs, the people of the area ** Czech culture ** Czech cuisine * One of three mythical brothers, Lech, Czech, and Rus' Places * Czech, ...

, 10.6 million speakers (2012) * Slovak, 5.2 million speakers (2011–12) * Sorbian, ca. 50,000 speakers ()

South Slavic languages

Serbo-Croatian Serbo-Croatian () – also called Serbo-Croat (), Serbo-Croat-Bosnian (SCB), Bosnian-Croatian-Serbian (BCS), and Bosnian-Croatian-Montenegrin-Serbian (BCMS) – is a South Slavic language and the primary language of Serbia, Croatia, Bosnia and ...

, 21 million speakers (), including

second language A person's second language, or L2, is a language that is not the native language (first language or L1) of the speaker, but is learned later. A second language may be a neighbouring language, another language of the speaker's home country, or a fo ...

speakers ** Bosnian, Croatian, Serbian and Montenegrin standards with dialectal differences *

Bulgarian Bulgarian may refer to: * Something of, from, or related to the country of Bulgaria * Bulgarians, a South Slavic ethnic group * Bulgarian language, a Slavic language * Bulgarian alphabet * A citizen of Bulgaria, see Demographics of Bulgaria * Bul ...

, 9 million (2005–12) * Slovene, 2.5 million speakers (2010) * Macedonian, 1.4–3.5 million speakers (1986–2011) *

Church Slavonic Church Slavonic (, , literally "Church-Slavonic language"), also known as Church Slavic, New Church Slavonic or New Church Slavic, is the conservative Slavic liturgical language used by the Eastern Orthodox Church in Belarus, Bosnia and Herzeg ...

(liturgical)

East Slavic languages

Russian Russian(s) refers to anything related to Russia, including: *Russians (, ''russkiye''), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *Rossiyane (), Russian language term for all citizens and peo ...

, 150 million speakers (2010), 260 million including L2 (2012) *

Ukrainian Ukrainian may refer to: * Something of, from, or related to Ukraine * Something relating to Ukrainians, an East Slavic people from Eastern Europe * Something relating to demographics of Ukraine in terms of demography and population of Ukraine * So ...

, 45 million speakers (2007) * Belarusian, 3.2 million speakers (2009) *

Rusyn Rusyn may refer to: * Rusyns, Rusyn people, an East Slavic people ** Pannonian Rusyns, Pannonian Rusyn people, a branch of Rusyn people ** Lemkos, a branch of Rusyn (or Ukrainian) people ** Boykos, a branch of Rusyn (or Ukrainian) people * Rusyn l ...

Extinct languages

Proto-Balto-Slavic language Proto-Balto-Slavic (PBS or PBSl) is a reconstructed hypothetical proto-language descending from Proto-Indo-European (PIE). From Proto-Balto-Slavic, the later Balto-Slavic languages are thought to have developed, composed of sub-branches Baltic ...

;Slavic *

Proto-Slavic Proto-Slavic (abbreviated PSl., PS.; also called Common Slavic or Common Slavonic) is the Attested language, unattested, linguistic reconstruction, reconstructed proto-language of all Slavic languages. It represents Slavic speech approximately ...

Old Church Slavonic Old Church Slavonic or Old Slavonic () was the first Slavic languages, Slavic literary language. Historians credit the 9th-century Byzantine Empire, Byzantine missionaries Saints Cyril and Methodius with Standard language, standardizing the lan ...

, liturgical * Knaanic, Jewish language * Old Novgorod *

Old East Slavic Old East Slavic (traditionally also Old Russian; be, старажытнаруская мова; russian: древнерусский язык; uk, давньоруська мова) was a language used during the 9th–15th centuries by East ...

, developed into modern

East Slavic languages The East Slavic languages constitute one of three regional subgroups of the Slavic languages, distinct from the West and South Slavic languages. East Slavic languages are currently spoken natively throughout Eastern Europe, and eastwards to Sibe ...

Old Ruthenian Ruthenian (Belarusian language, Belarusian: руская мова; Ukrainian language, Ukrainian: руська мова; Ruthenian: руска(ѧ) мова; also see #Nomenclature, other names) is an exonymic linguonym for a closely-related grou ...

Polabian language The Polabian language was a West Slavic language that was spoken by the Polabian Slavs (german: Wenden) in present-day northeastern Germany around the Elbe (''Łaba/Laba/Labe'' in Slavic) river, from which derives its name ("po Labe" – ''unto ...

Pomeranian language ), East Low German, East Pomeranian dialect The Pomeranian language (Polish: ''pomorszczyzna'' or ''język pomorski'', German: ''Pomoranisch'' or ''die pomoranische Sprache'') is in the Pomeranian group of Lechitic languages (Polish: ''grupa po ...

, only Kashubian remains as a living dialect * South Slavic dialects used in medieval Greece ;Baltic * Curonian *

Old Prussian Old Prussian was a Western Baltic language belonging to the Baltic branch of the Indo-European languages, which was once spoken by the Old Prussians, the Baltic peoples of the Prussian region. The language is called Old Prussian to avoid con ...

* Galindan * Selonian * Semigallian * Sudovian

Notes

External links

*{{cite web, url=http://www.britannica.com/topic/Slavic-languages, title=Slavic languages, website=Encyclopædia Britannica, access-date=2016-05-21