The Smolyan dialect or Central Rhodope dialect is a Bulgarian dialect of the Rhodopean group of the Rup dialects. Its range includes most of the Central Rhodopes, i.e. the region of Smolyan. Its immediate neighbours are the Rhodopean Hvoyna dialect to the north, the Serres-Nevrokop dialect and the Razlog dialect to the west and the Turkish dialects of the Turkish population in the Eastern Rhodopes. To the south, the Smolyan dialect crosses the Greek-Bulgarian border and is spoken by much of the Muslim Bulgarian (Pomak) population in Western Thrace. As a result of the rugged mountainous terrain and the century-long isolation of the region from the rest of the country, the Smolyan dialect is the most idiosyncratic of all Bulgarian dialects and is not readily understandable even for its immediate neighbours.

For other phonological and morphological characteristics typical for all Rup or Rhodopean dialects, cf. Rup dialects.

Стойков, Стойко: Българска диалектология, Акад. изд. "Проф. Марин Дринов", 2006 [1]