M9, M-9 most often refers to:
- Beretta M9, a 9 mm pistol
M9, M-9 or M09 may refer to:
Aviation
edit- 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)
Computers
edit- M9-IX, a short name for the Moscow Internet Exchange
- Apple M9, one of the company's series of Apple motion coprocessors
Firearms and military equipment
edit- Beretta M9, the standard-issue service pistol for the US Army and other forces
- M9M1, a 9mm/.45ACP submachine gun
- M-9, the export name for the Chinese missile DF-15
- M9 half-track, a variant of the M2 Half Track
- 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
- M9 flamethrower, flamethrower, United States
- M9 gun director, director used with 90mm anti-aircraft guns
- T40/M9 tank destroyer, American tank destroyer
Science
edit- 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
- M9 medium, a salt medium for cultivating Escherichia coli
Transport
edit- M9 (New York City bus), a New York City Bus route in Manhattan
- M9, a Washington, D.C. Metrobus route
- Sri Lanka Railways M9, Sri Lanka Railways diesel-electric locomotive
- M9 (railcar), a Long Island Rail Road car
- M9 (Istanbul Metro), a rapid transit rail line in Istanbul, Turkey
- M9 (East London), a Metropolitan Route in East London, South Africa
- M9 (Cape Town), a Metropolitan Route in Cape Town, South Africa
- M9 (Johannesburg), a Metropolitan Route in Johannesburg, South Africa
- M9 (Pretoria), a Metropolitan Route in Pretoria, South Africa
- M9 (Durban), a Metropolitan Route in Durban, South Africa
- M9 (Port Elizabeth), a Metropolitan Route in Port Elizabeth, South Africa
- 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), 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
- M9 road (Zambia), a road in Zambia
- M9 road (Malawi), a road in Malawi
- AITO M9, an electric SUV
- Bestune M9, a rebadged Hongqi HQ9 minivan
Other
edit- 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
- "M9", a fictional British secret intelligence agency in the television spy show Danger Man
- M9, a difficulty grade in mixed climbing