Three new species of the genus Roncus L. Koch, 1873 are described and figured: Roncus gasparoi n.sp. from Corfu (Spilaio Anthropograva), Roncus pieperi n.sp. from Kefalonia (caves Fitidi and Drogarati) and Roncus giachinoi n.sp. from continental Greece, Arkanania (Megalo Spilio).