Paracoryphella islandica is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusk in the family Paracoryphellidae.
Paracoryphella islandica was originally described as Coryphella islandica by Nils Hjalmar Odhner in 1937. M. C. Miller (1971) assigned this species to a new genus Paracoryphella within a new family Paracoryphellidae. Gosliner & Kuzirian (1990) synonymized Paracoryphella with Flabellina, but Korshunova et al., 2017 reinstated Miller's genus and family.