[in Russian with English summary: ] The materials of the article contain data on the findings of 13 new species of lichens from Eastern Siberia. Among them, Rhizocarpon chioneum is the species new for Southern Siberia, Peltigera lyngei and Biatora pallens are two new species for the Central Siberian Plateau, six new species are new for the Taymyrskyi Biosphere Nature Reserve (Taimyr Peninsula), Leproplaca chrysodeta, Rhizocarpon chioneum, Rinodina terrestris are new species of lichens for the Republic of Buryatia. The world’s northernmost habitat for the species Bryoria nadvornikiana is reported from the Taimyr Peninsula. New localities for species Leptogium burnetiae, Leptogium hildenbrandii, Lobaria retigera, Lobaria pulmonaria, Nephromopsis laureri, Pyxine sorediata listed in the Red Data Book of the Russian Federation (2008) are noted. New localities for the thirteen species included in the Red Data Books of the Republic of Buryatia, Irkutsk Region, Krasnoyarsk Territory are presented. Keywords: Central Siberian Plateau, lichens, Krasnoyarsk Territory, Republic of Buryatia, Taymyrskyi Biosphere Nature Reserve, Tunguska State Nature Reserve, Tunkinsky National Nature Park.