Endangered Slavic languages

West Slavic language spoken in Poland

language spoken by Sorbs in Germany in the historical province of Upper Lusatia

Western Slavic language spoken in eastern Germany in the historical province of Lower Lusatia

thumb|right|Bilingual street sign in Montemitro in Italian and Molise Croatian Slavomolisano, also known as Molise Slavic or Molise Croatian (; ), is a variety of Shtokavian Croatian spoken by Italian Croats in three villages – Montemitro (), Acquaviva Collecroce () and San Felice del Molise () – in the province of Campobasso, in the Molise Region of southern Italy. There are fewer than 1,000 active speakers, and fewer than 2,000 passive speakers.

dialect of Slovenian, spoken in Resia, Friuli, Italy

transitional dialect of Sorbian