Herculia or Herculius may refer to:
Ancient Roman military units Cohors I Herculia Raetorum Legio II Herculia Legio VI Herculia
Other uses Herculia (moth), a genus of snout moths Aegyptus Herculia, an Ancient Roman province of Egypt Gorsium-Herculia, now Tác, Hungary , a Roman road in Italia
See also Hercules Herculea