Storsjo, Storsjoe, or Storsjoen can mean:
Places Storsjøen (Odal), lake in the Odal valley in Innlandet county, Norway Storsjøen (Rendalen), a lake in Rendalen municipality in Innlandet county, Norway Storsjøen (Tolga), a lake in Tolga municipality in Innlandet county, Norway Storsjön, lake in Jämtland, Sweden Storsjöodjuret, legendary monster in Storsjön