[in Russian with English summary: ] The paper presents the new data on lichen of the genus umbilicaria Hoffm. from Paramushir and Sakhalin islands. Six species from Paramushir Island are presented; four (Umbilicaria cylindrica, U. deusta, U. hyperborea, and U. torrefacta) are recorded in Paramushir for the first time. One more species, U. muhlenbergii, collected from ancient inselbergs on the Tonin-Aniva Peninsula, Sakhalin, was registered in the island for the first time. Three of the species discussed (umbilicaria deusta, U. muhlenbergii, andU. hyperborea) are new for Sakhalin Oblast. Brief descriptions, localities and photos are presented for the reported species.Keywords: Northern Kurils, Russia’s Far East, volcanic activity, rock vegetation.