[in Polish with English abstract and summary: ] The paper presents new localities of 16 rare and interesting lichen species in the Western Bieszczady Mts. Most of the presented taxa are known from only few localities in Poland. Seven species are included in the “red lists” of endangered lichens. Ten lichens are reported for the first time from that region. The records of Bacidia laurocerasi, Biatora mendax and Lecanographa amylacea are also the first data from the Polish part of the Carpathians. Key words: lichenized fungi, rare species, distribution, new localities, Bieszczady Mountains.