Gertus orGertous (Ancient Greek:Γερτοῦς[1]) was an ancient town in the southernIllyrian region ofDassaretia, mentioned byPolybius in the 2nd century BC in the accounts of theIllyrian Wars andMacedonian Wars.[2][3][4] The location of the ancient town is still unknown.[4][5] It was probably situated betweenLychnidus andAntipatrea.[6]
Along withAntipatrea,Chrysondyon andCreonion, Gertus was one of the Dassaretan towns (also described ascastella) around which theIllyrian dynastSkerdilaidas and theMacedonian kingPhilip V fought in 217 BC.[2][5] The settlement of Gertus was evidently walled.[5]