Iazychie (Ukrainian: Язичіє, Yazychiye) was an artificial language used in the 19th century and beginning of the 20th century in Halychyna, Bukovina, and Zakarpattia in publishing, mostly of a reactionary persuasion, particularly by Ukrainian Russophiles (Moskvophiles). It was an inconsistent combination of lexical, phonetic and grammatical elements of the vernacular Ukrainian language (including dialects of predominantly southwestern origin), Old Ukrainian (Ruthenian language), Polish, Russian, Old Slavic.
Nikolay Chernyshevsky called "Iazychie" a mutilation of the language and sharply condemned it. Ivan Franko and other representatives of the west Ukrainian progressive intelligentsia opposed the use of "Iazychie".
Some members of the Rusyn diaspora such as Paul Robert Magocsi consider the name pejorative to the Carpatho-Rusyn language.