Rusyn language
The Boykos (; ; ; ), or simply Highlanders (верховинці, "verkhovyntsi"), are a ethnolinguistic group located in the Carpathian Mountains of Ukraine, Slovakia, Hungary, and Poland. Along with the neighboring Lemkos and Hutsuls, the Boykos are a sub-group of the Rusyns and speak a dialect of Rusyn language. However, at the official level within Ukraine, the Boykos and other Rusyns are regarded as a sub-group of ethnic Ukrainians, and the Rusyn language is regarded as part of a dialect continuum within Ukrainian. Boykos differ from their neighbors in dialect, dress, folk architecture, and customs.