The Paris Gun was the name given to a type of German long-range siege gun, several of which were used to bombard Paris during World War I. They were in service from March to August 1918. When the guns were first employed, Parisians believed they had been bombed by a high-altitude Zeppelin, as the sound of neither an aeroplane nor a gun could be heard.

Lufa Działa Paryskiego miała 28 m długości oraz dodatkowe sześciometrowe przedłużenie na końcu. Do trzymania jej prosto służył specjalny naciąg, inaczej zgięłaby się pod własnym ciężarem.