A Tobrouk bunker is a small, reinforced concrete defensive structure designed to house a single soldier, commonly found along the Atlantic Wall fortifications in France. These bunkers were part of Nazi Germany's extensive coastal defense system during World War II, built to resist Allied invasion attempts. The Tobrouk design typically features a circular or polygonal shape with a narrow firing aperture, allowing the occupant to observe and engage enemy forces while remaining protected.
Similar structures have been documented in the Cherbourg area and are preserved at the Memorial Museum of the Battle of Normandy.