Torlakian dialects

Torlakian, or Torlak, is a group of transitional South Slavic dialects of southeastern Serbia, Kosovo, northeastern North Macedonia, and northwestern Bulgaria. Torlakian, together with Bulgarian and Macedonian, falls into the Balkan Slavic linguistic area, which is part of the broader Balkan sprachbund. According to UNESCO's list of endangered languages, Torlakian is vulnerable.

Torlakian is not standardized, and its subdialects vary significantly in some features. Yugoslav linguists traditionally classified it as an old Shtokavian dialect or as a fourth dialect of Serbo-Croatian along with Shtokavian, Chakavian, and Kajkavian. Bulgarian scholars classify it as a Western Bulgarian dialect, in which case it is referred to as a Transitional Bulgarian dialect.

In Bulgarian common speech, the Torlakian dialects are traditionally referred to as У-говори ("U-dialects"), referencing their reflex of old Slavic *ǫ being /u/ (compared to standard Bulgarian, where it is /ɤ/, or its nearby dialects, where it is /a/).

Some researchers tend to classify it as Eastern South Slavic. According to Ivo Banac, during the Middle Ages, Torlak and the Eastern Herzegovinian dialect were part of Eastern South Slavic, but since the 12th century, especially the Shtokavian dialects, including Eastern Herzegovinian, began to diverge from the other neighboring South Slavic dialects. Some of the phenomena that distinguish western and eastern subgroups of the South Slavic languages can be explained by two separate migratory waves of different Slavic tribal groups of the future South Slavs via two routes: the west and east of the Carpathian Mountains.

Speakers of the dialectal group are primarily ethnic Serbs, Bulgarians, and Macedonians. There are also smaller ethnic communities of Croats (the Krashovani) in Romania and Slavic Muslims (the Gorani) in southern Kosovo.