The occurrence of Ponto-Caspian amphipod Corophium robustum (Sars, 1895) was reported on a Slovak side of the Danube River. Specimens were found during the investigation of the Danube River between years 2007 and 2011 and near to the inlet of the Hron River. Until now, two species of genus Corophium were known to be present in Slovak section of the Danube River; the Corophium curvispinum (Sars, 1895) and Corophium sowinskyi (Martynov, 1924).