The 88mm anti-aircraft gun is a medium caliber anti-aircraft gun designed and tested by the world-renowned artillery manufacturer Krupp subsidiary in Germany. After completing on-site testing, it entered service in 1933 and also possessed particularly strong anti tank capabilities. This gun was the most successful artillery system used during World War II, a highly successful medium caliber anti-aircraft gun that gave it a high firing rate. After Hitler finally freed himself from the constraints of the arms limitation treaty, the 88mm anti-aircraft gun was immediately adopted by the German Air Force (whose air defense forces were under its jurisdiction) as the standard equipment for medium caliber anti-aircraft guns.

The 3.7-inch mobile anti-aircraft gun from World War II is now located next to HMS Ocelot at the Chatham Historical Shipyard in Kent. This gun was used by British artillery to defend the town of Medway.