A list of hepatics known from Heard Island, based on the collections made by N. J. M. Gremmen and V.R. Smith, and the complete list of references from the literature to the former collections, is presented. From the 18 species collected by N.J.M. Gremmen, 7 species are new to the island; only one species formerly reported (Chiloscyphus coadunatus) was not present in the collections. Two species new to science, Chiloscyphus gremmenii Váňa and Pachyglossa grolleana Váňa are described and illustrated.