Thirteen species belonging to nine genera of the family Melandryidae are recognized from Korea. Among them, eight species (Orchesia imitans Lewis, Dircaea erotyloides Lewis, Dircaeomorpha elegans Sasaji, Mikadonius gracilis Lewis, 1895, Enchodes orientalis Nikitsky, Phloeotrya obscura (Lewis), P. rugicollis Lewis, and Melandrya mongolica Solsky) are reported for the first time from Korea. Keys for subfamilies, genera, and species are given, and illustrations of adults and male genitalia are provided.