The genus Trixagus Kugelann is one of the most diverse genera in the family Throscidae Laporte, which comprises about 80 species. Only a single species of this genus has been reported in Korea throughout the entire family. In this study, three additional species, Trixagus sp., Trixagus leseigneuri Muona, and Trixagus turgidus Hisamatsu are reported for the first time in Korea. Similar to that of the species illustrated in Kovalev, males of Trixagus leseigneuri Muona and Trixagus turgidus Hisamatsu possess sexual modification on mesotarsus. Trixagus sp. and Trixagus turgidus Hisamatsu exhibit characters that are unusual for this genus, including the unincised eye, a blade-like structure on the protibia, and others. Illustrations of habitus and diagnostic characters of each species are provided.