Data are provided on the first record of Marsupella apiculata Schiffn. from the flora of the Republic of Karelia and on new records of nine liverwort species red-listed in the Republic of Karelia (Arnellia fennica (Gottsche) Lindb., Cephalozia macounii (Austin) Austin, Calypogeia suecica (Arnell et J. Perss.) Mull. Frib., Heterogemma laxa (Lindb.) Konstant. et Vilnet, Lophozia ascendens (Warnst.) R. M. Schust., Riccia cavernosa Hoffm., Scapania apiculata Spruce, Syzygiella autumnalis (DC.) K. Feldberg, Vana, Hentschel et Heinrichs, Trichocolea tomentella (Ehrh.) Dumort.). This information noticeably expands our knowledge on their distribution in the region. The localities, habitats and substrates are reported for each of the above-mentioned species.