M8

M8 or M-8 may refer to:

In astronomy:

• Lagoon Nebula or Messier 8

In aviation:

• Loening M-8, a 1910s American fighter monoplane
• Miles M.8 Peregrine, a 1930s British twin-engined light transport monoplane

In computing:

• M8 (cipher), an encryption algorithm

In mechanical engineering:

• a standard bolt and nut size in the metric system. See ISO metric screw thread

In entertainment:

• M8 (magazine), a dance music magazine based in Scotland
• Media 8 Entertainment (M8 Entertainment), a film company

In electronics:

• Leica M8, a digital Leica rangefinder camera
• Meizu M8, a smartphone designed by Meizu similar to the iPhone

In firearms and military equipment:

• M8, an alternate designation for the XM8 rifle, a lightweight assault rifle
• M-8 rocket, a variant of the RS-82 rocket used by the Soviet Union in World War II
• M8 (rocket), an American air-to-surface and surface-to-surface rocket of World War II
• M8 Greyhound, an American armored car used during World War II
• M8 Armored Gun System, a US Army light tank cancelled in 1996
• Howitzer Motor Carriage M8, an American self-propelled howitzer vehicle developed during World War II
• M8 grenade launcher, a grenade launcher used by the US in World War II
• AN-M8 pyrotechnic pistol, a 40mm flare gun used by the US in World War II

In transportation:

• M8 motorway (Scotland), a motorway in Scotland
• Russian route M8 is another name for the Kholmogory Highway in Russia
• M8 motorway (Ireland), interurban motorway connecting Cork and Dublin in Ireland
• M-8 (Michigan highway) a state highway in Detroit also known as the Davison Freeway
• M8 (railcar), a new railcar being designed for the Metro-North Railroad in New York
• Western Freeway (Victoria) in Victoria, Australia, designated "M8"
• M8 motorway (Hungary), a future motorway in Hungary

See also

• 8M (disambiguation)