The Cerkno dialect (Slovene: cerkljansko narečje,[1] cerkljanščina[2]) is a Slovene dialect in the Rovte dialect group. It is spoken mostly in the municipalities of Cerkno and Idrija in western Slovenia. Unlike many other dialects from the same dialect group, which have suffered a loss in the number of speakers due to emigration and urbanization, the Cerkno dialect remains widely spoken and it is recognized in the wider Slovenian Littoral region for its distinctive phonetic features.