[in Russian with English abstract: ] 78 species new to the lichen flora of the Kerzhenskiy Reserve are recorded based on the authors’ field research in 2020–2021. 65 species are new to the Nizhny Novgorod Region. Among them, Lecanora densa is reported for the first time for Russia; 4 species, namely Gyalecta nigricans, Micarea microareolata, Protoparmelia oleagina, and Stigmidium cerinae, are new to the Central European Russia. The information about the localities, ecology and distribution of mentioned species is provided. Keywords: Lecanora densa, lichens, new findings, distribution.