WN 018 (Ex Ha K 018) is a World War II German defensive bunker located in France, part of the Atlantic Wall fortifications. This coastal defense position was constructed by Nazi Germany to protect the French coastline from Allied invasion. The bunker's designation follows the standard German military nomenclature for Widerstandsnest (resistance nest) positions along the Atlantic Wall.
Situated near the coast, this fortification would have formed part of the extensive network of defensive positions designed to repel potential amphibious assaults.