A12

• A-12 Shrike, a World War 2–era American attack aircraft. • Abrial A-12 Bagoas, a French experimental glider of the 1930s. • Aero A.12, a Czechoslovak light bomber built after World War I. • Lockheed A-12, codenamed Oxcart, a high-altitude, high-speed reconnaissance aircraft, manufactured for the CIA. • McDonnell Douglas A-12 Avenger II, an early attempt by the United States to develop stealth aircraft, cancelled due to cost overruns. ==Military==

• Aggregate 12, a German rocket design in World War II that was never constructed. • , a French-built aircraft carrier in use by the Brazilian Navy. • , a British A-class submarine of the Royal Navy. • Matilda II (tank), built to General Staff specification A12, a British tank of World War 2. ==Science and technology==

• A12 Authentication, a CHAP-based mechanism used by a CDMA2000 Access Network to authenticate a 1xEV-DO Access Terminal. • ARM Cortex-A12, a 32-bit multicore processor. • Apple A12, a 7-nanometer 64-bit ARM SoC. • ATC code A12 Mineral supplements, a subgroup of the Anatomical Therapeutic Chemical Classification System. • British NVC community A12 (Potamogeton pectinatus community), a British Isles plant community. • A Rhodopsin-like receptors subfamily. • Samsung Galaxy A12, an Android phone. ==Other uses==

• A12 road, in several countries. • Fiat A.12, a 1916 Italian, 6–cylinder, liquid-cooled in-line engine. • LSWR A12 class, an 1887 British steam locomotive model. • Route A12 (WMATA), a bus route in Washington, USA. • A12 scale, musical tuning based on the 4:7:10 triad. • One of the Encyclopaedia of Chess Openings codes for the English Opening. • Unite the Right rally, referred to as "A12" locally, a white supremacist rally in Charlottesville, Virginia, which took place on August 12, 2017. • X Æ A-12, the son of Elon Musk. • A highly desirable performance option for the 1969 Plymouth Road Runner and Dodge Super Bee with a 440 engine and special transmission and differential features. • A12-Speed, a track in Trackmania United Forever & Nations Forever best known for its shortcut.