Iovia or Jovia (Latin for "Jovian", "of Jupiter") may refer to:
Aegyptus Iovia, late Roman province Legio V Iovia, Roman legion levied by Diocletian Legio I Iovia, Roman legion levied by Diocletian Iovia (Botivo), late Roman city in Pannonia, now Ludbreg, Croatia , late Roman site in Pannonia, now in Kapospula, Hungary