OB 10cm Geschütz is a German World War II coastal artillery bunker located in Normandy, France. Part of the Atlantic Wall fortifications, this concrete structure was designed to house a 10cm naval gun for coastal defense against Allied naval forces. The bunker exemplifies the Regelbau standardization used by German forces during the occupation of France, featuring thick reinforced concrete walls and an armored gun emplacement.
Situated along the French coastline, it formed part of the extensive defensive network built to protect occupied Europe from potential Allied invasion.