M9, M-9 or M09 may refer to:
In aviation :
Grigorovich M-9, a Russian World War I-era biplane flying boat
Miles M.9 Master, a 1939 British 2-seat monoplane advanced trainer
Motor Sich Airlines, a Ukrainian airline (IATA airline designator: M9)
In computers:
M9-IX, a short name for the Moscow Internet Exchange
In firearms and military equipment:
M9M1, a 9mm/.45ACP submachine gun
M9 pistol, a 9mm pistol
M-9, the export name for the Chinese missile DF-15
M9, a variant of the M2 Half Track Car
M9 bayonet, a United States military knife
M9 Armored Combat Earthmover, a United States military earthmover
M9 Anti-tank Rocket Launcher, another name for the bazooka
In transport:
M9 (New York City bus), a New York City Bus route in Manhattan
M9, a Washington, D.C. Metrobus route
M9 (railcar), a proposed Long Island Railroad car
M9 motorway (Ireland), a motorway-grade segment of the N9 road in Ireland
M9 motorway (Pakistan) in Pakistan, also known as Super Highway
M9 highway (Russia) is another name for the Baltic Highway in Russia
M9 motorway (Scotland), a motorway in Scotland
Highway M09 (Ukraine)
M-9 (Michigan highway), a former state highway route in Michigan, USA
In science:
Messier 9 (M9), a globular cluster in the constellation Ophiuchus
ATC code M09 Other drugs for disorders of the musculo-skeletal system, a subgroup of the Anatomical Therapeutic Chemical Classification System
In other uses:
Leica M9, a camera
Meizu M9, a smartphone with Android
HTC One M9, a smartphone with Android
"M9", a song by British band Boards of Canada, released on their Boc Maxima demo in 1996
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