M12

M12 or M-12 or M.12 may refer to:

Aviation

• Beriev Be-12, Soviet Naval Designation M-12, a Soviet amphibious aircraft
• Grigorovich M-12, an improved version of the Grigorovich M-11, a Russian single-seat fighter flying boat designed by Dmitry Pavlovich Grigorovich
• Macchi M.12, a flying boat bomber produced in small numbers in Italy in 1918
• Miles M.12 Mohawk, a 1930s British two-seat, tandem cabin monoplane

Automobiles

• BMW M12, a turbo 1500 cc 4-cylinder turbocharged Formula One engine of the 1980s
• McLaren M12, a racing car for the Can-Am series
• Noble M12, a British sports car
• Vector M12, an automobile made by Vector Supercars

Military technology & weapons

• Beretta M12, a sub-machine gun by Italian designer Beretta
• Doppelpistole M.12, a double barrel submachine gun based on the Steyr M1912 semi-automatic pistol, developed by the Austrian firm Steyr Mannlicher
• Krupp 10.5 cm Haubitze M.12, a German howitzer used by Romania in World War I
• M12 Gun Motor Carriage, an American self-propelled artillery model
• Winchester Model 1912, a shotgun
• Zastava M12 Black Spear, a 12.7mm caliber anti-materiel rifle developed by Zastava Arms

Roads

• M-12 (Michigan highway), a former designation for part of U.S. Route 2 in Michigan
• Highway M12 (Ukraine), a state international highway (M-highway) in Ukraine connecting Lviv Oblast to the Central Ukraine
• M12 motorway, a short motorway in County Armagh, Northern Ireland.
• M12 motorway (Great Britain), a proposed motorway in southern England, which was never built.
• Western Sydney Airport Motorway, a proposed motorway in western Sydney with the route number M12.

Space

• Messier 12, a globular cluster in the constellation Ophiuchus
• Progress M-12, a Russian unmanned cargo spacecraft launched in 1992 to resupply the Mir space station
• Progress M-12M, an unmanned Progress spacecraft that was lost in a launch failure in August 2011

Other

• M12 (artist collective), a Colorado-based artist collective that works in rural communities.
• M12 (New York City bus), a planned New York City Bus route in Manhattan
• A line of 12-volt power tools manufactured by Milwaukee Electric Tool Corporation
• M12 plug specified in IEC 61076-2-101
• The Mathieu group M12 in the mathematical field of group theory
• M12 bolt, a metric screw thread with a 12mm outer diameter
• Majestic 12, a code name for an alleged committee involved in UFO investigations
• Magic 2012, the thirteenth core set in Magic: The Gathering
• S-mount (CCTV lens), a CCTV lens mount using a M12x0.5 thread