Hydissus or Hydissos (Greek, Ancient (to 1453);: Ὑδισσός), Hydisus or Hydisos (Ὑδισός), or Hydissa (Ὕδισσα) was a town of ancient Caria, situated east of Mylassa. Hydissus was a polis (city-state) and a member of the Delian League.[1] Its site is located near Karacahisar, Muğla Province, Turkey.