EN
The article discusses issues concerning consonantism in the Ukrainian dialects over the territory of river San In Poland. Detailed analysys was put on the theme of correlation of consonant system in the end position of prefix, middle of the word, end of the word and the liaison position before voiced and voiceless consonants. Voiced and voiceless correlation occurs in many south-western Ukrainian dialects and also in analyzed dialects over the territory of river San. The most characteristic feature of dialects over territory of river San is the less of consonant voicing which is supported by the influence of Polish language. Therefore, there are phonemes tha thave no counterparts correlation so they are not forming a binary pair.