M18

M18 or M-18 may refer to:

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Aircraft

• Messerschmitt M 18, an early German airliner
• Miles M.18, a Miles aircraft
• Mooney M-18 Mite, a low-wing monoplane
• PZL-Mielec M-18 Dromader, an agricultural and aerial-firefighting aircraft
• Myasishchev M-18, a design for a Soviet supersonic bomber with a variable-sweep wing

Firearms and military equipment

• M18 Claymore mine, an American anti-personnel landmine
• M18 Hellcat, an American tank destroyer used in World War II
• M18 smoke grenade, a colored smoke grenade
• M18 recoilless rifle, a late-World War II recoilless rifle
• SIG Sauer M18 pistol, a compact, carry sized SIG Sauer P320 used by the United States armed forces

Roads and highways

• M18 motorway (Great Britain)
• M18 motorway (Ireland)
• M-18 (Michigan highway)
• M18 (East London), a Metropolitan Route in East London, South Africa
• M18 (Cape Town), a Metropolitan Route in Cape Town, South Africa
• M18 (Johannesburg), a Metropolitan Route in Johannesburg, South Africa
• M18 (Pretoria), a Metropolitan Route in Pretoria, South Africa
• M18 (Port Elizabeth), a Metropolitan Route in Port Elizabeth, South Africa
• List of M18 roads

Other uses

• M18, a metric screw thread
• Messier 18, an open star cluster in the constellation Sagittarius
• M18 or M-18, Mara 18, Central American street gang
• Hope Municipal Airport, Arkansas, United States (FAA location identifier: M18)
• A line of 18-volt power tools manufactured by Milwaukee Electric Tool Corporation
• M18, a student club at the Bauhaus University, Weimar, Germany
• M18, a media content rating issued by the Infocomm Media Development Authority of Singapore
• Haplogroup M18