Remains of a representative of the family Mastodontidae (Proboscidea, Mammalia) of the Villafranchian fauna were found in Hajnacka, southern part of Central Slovakia. The upper jaw fragment of an Anancus arvernensis with preserved molars M² sin., M² dex., M³ sin., M³ dex. is described in this paper. Anancus arvernensis is a relatively common mastodontid in the Europaean Plio-Pleistocene deposits. Only isolated teeth and bones of mastodontids are usually found on the territory of Slovakia and more complete fossil remains such as the presented specimen are very rare.