Mark XIX or Mark 19 may refer to:

Military

Mk 19 grenade launcher The Mk 19 grenade launcher (pronounced Mark 19) is an American 40 mm belt-fed automatic grenade launcher that was first developed during the Vietnam War. Overview The Mk 19 is a belt-fed, blowback-operated, air-cooled, crew-ser ...

, a widely used American belt-fed weapon that fires 40 mm grenades * Mark 19 torpedo, a prototype American torpedo *

Desert Eagle The Desert Eagle is a trigger (firearms), single-action, Gas-operated reloading, gas-operated, semi-automatic pistol capable of chambering the .50 Action Express, the largest centerfire cartridge of any magazine-fed, self-loading pistol and a nu ...

or Mark XIX (1982), a U.S.-Israeli large caliber semi-automatic pistol * Logistics Vehicle System MK19 Rear Body Unit; US Marine Corps heavy tactical vehicle trailer incorporating a crane

United Kingdom

BL 6-inch gun Mk XIX The British British ordnance terms#BL, BL 6-inch gun Mk XIXI.e. Mark 19 : Britain at the time designated Marks (models) of ordnance using Roman numerals. This was a field gun and field ordnance normally used a different Mark series to naval ordn ...

(1916–1940), an artillery piece made by Vickers * CP Mk.XIX, a Royal Navy central-pivot twin-mount carrying two quick-firing 4-inch guns * HA/LA Mk.XIX, a Royal Navy high-angle/low-angle twin-mount carrying two quick-firing 4-inch guns * De Havilland Mosquito NF Mk XIX, a night fighter variant

De Havilland Mosquito The de Havilland DH.98 Mosquito is a British twin-engined, multirole combat aircraft, introduced during the World War II, Second World War. Unusual in that its airframe was constructed mostly of wood, it was nicknamed the "Wooden Wonder", or " ...

that could mount American or British radar * Supermarine Spitfire Mk 19 (1944), the last and most successful

Supermarine Spitfire The Supermarine Spitfire is a British single-seat fighter aircraft that was used by the Royal Air Force and other Allies of World War II, Allied countries before, during, and after World War II. It was the only British fighter produced conti ...

photographic reconnaissance variant * Vickers Wellington T Mk XIX, service conversion of the

Vickers Wellington The Vickers Wellington (nicknamed the Wimpy) is a British twin-engined, long-range medium bomber. It was designed during the mid-1930s at Brooklands in Weybridge, Surrey. Led by Vickers-Armstrongs' chief designer Rex Pierson, a key feature of t ...

Mk X for use as a navigation trainer * ASV Mk. 19 (anti surface vessel), an EKCO airborne radar fitted to the Royal Navy Fairey Gannet {{disambiguation