Battery Moltke or Batterie Moltke is an uncompleted World War II former coastal artillery battery in St Ouen in the north west of Jersey. It was constructed by Organisation Todt for the Wehrmacht during the Occupation of the Channel Islands. The primary purpose of this battery would have been the defence of St Ouen's Bay in the event of an amphibious assault by the Allies, although Jersey's entire coastline would have been within range of the guns, as would the stretch of water between Jersey and Sark.