M20, M-20, or M.20 may refer to:

Transportation

M20 (New York City bus) The Eighth Avenue Line is a public transit line in Manhattan, New York City, running mostly along Eighth Avenue from Lower Manhattan to Harlem. Originally a streetcar line, it is now the M10 bus route and the M20 bus route, operated by the Ne ...

, a New York City Bus route in Manhattan *

M-20 (Michigan highway) M-20 is a state trunkline highway in the US state of Michigan that runs from New Era to Midland. It crosses through rural Lower Peninsula forest land between the two ends. The highway serves the college towns of Big Rapids and Mt. Pleasant, h ...

, a state highway in Michigan *

M20 motorway The M20 is a motorway in Kent, England. It follows on from the A20 at Swanley, meeting the M25, and continuing on to Folkestone, providing a link to the Channel Tunnel and the ports at Dover. It is long. Although not signposted in England, ...

, a road in Kent, United Kingdom *

M20 motorway (Ireland) The N20 road is a national primary road in Ireland, connecting the cities of Cork and Limerick. Buttevant, Croom, Charleville, Mallow and Blarney are major towns along the route. A short section of the route (from Limerick to Patrickswell) is ...

, a road, part of the N20 national primary road * M20 Road (Zambia) *

M20 (Johannesburg) The M20 is a short Metropolitan Routes in Johannesburg, metropolitan route in the Greater Johannesburg Metropolitan Area, Greater Johannesburg metropolitan area, South Africa. It connects Randburg in the western part of Johannesburg with Edenva ...

, a Metropolitan Route in Johannesburg, South Africa * M20 (Pretoria), a Metropolitan Route in Pretoria, South Africa * M20 (Durban), a Metropolitan Route in Durban, South Africa * M20 (Pietermaritzburg), a Metropolitan Route in Pietermaritzburg, South Africa *

M20 highway (Russia) Russian route R23 or Pskov Highway russian: Федера́льная автомоби́льная доро́га Р23 «Псков» is a Russian federal motorway that runs from Saint Petersburg through Pskov until the border with Belarus. It is ...

Highway M20 (Ukraine) Highway M20 is the second shortest Ukraine international highway (State Highways (Ukraine), M-highway) which connects Kharkiv to the Russia–Ukraine border, border with Russia at Hoptivka in Kharkiv Raion in Kharkiv Oblast (Kharkivshchyna) (Ukra ...

BMW M20 The BMW M20 is a SOHC straight-six petrol engine which was produced from 1977 to 1993. It was introduced eight years after the larger BMW M30 straight-six engine, which remained in production alongside the M20. The first cars to use the M20 were ...

, a 1976 automobile engine *

Macchi M.20 The Macchi M.20 was a single-engine biplane trainer aircraft produced by the Italian aeronautical company Aeronautica Macchi between the end of the 1910s and the beginning of the 1920s. Produced in small numbers and intended for the civil aviatio ...

, an Italian civil trainer aircraft *

Mooney M20 The Mooney M20 is a family of piston-powered, four-seat, propeller-driven, general aviation aircraft, all featuring low wings and tricycle gear, manufactured by the Mooney International Corporation.Munson, Kenneth & Michael Taylor: ''Jane's ...

, a general aviation aircraft *

Northern Expressway Northern Expressway, also known as the Fatchen Northern Expressway, is a 21 kilometre long controlled-access highway in Adelaide, South Australia. Since March 2020, the North–South Motorway continues west of Port Wakefield Highway and interse ...

, a motorway in Adelaide, South Australia

Science and technology

Messier 20 Messier may refer to: People with the surname *Charles Messier Charles Messier (; 26 June 1730 – 12 April 1817) was a French astronomer. He published an astronomical catalogue consisting of 110 nebulae and star clusters, which ...

(M20), a nebula also called the Trifid Nebula *

Olivetti M20 The Olivetti M20 is a Zilog Z8000 based computer designed and released by Olivetti in 1982. Although it offered good performance, it suffered from a lack of software due to its use of the Z8000 processor and custom operating system, PCOS. The com ...

, an Italian personal computer *

British NVC community M20 NVC community M20 (''Eriophorum vaginatum'' raised and blanket mire) is one of the Mires in the British National Vegetation Classification system, mire Terminology used in connection with the British National Vegetation Classification, communities ...

, a mire biological community in the United Kingdom * M-20 (computer), a Russian Soviet computer * Garmin-Asus Nüvifone M20, a smartphone *

Samsung Galaxy M20 The Samsung Galaxy M20 is an Android smartphone produced by Samsung Electronics Samsung Electronics Co., Ltd. (, sometimes shortened to SEC and stylized as SΛMSUNG) is a South Korean multinational corporation, multinational electronics ...

, a smartphone

Firearms and military equipment

M20 Armored Utility Car The M8 light armored car is a 6×6 armored car produced by the Ford Motor Company during World War II. It was used from 1943 by United States and British forces in Europe and the Pacific until the end of the war. The vehicle was widely exported ...

, a WWII-era American scout car * M20, a Chinese copy of the Soviet TT-33 pistol *

M20 recoilless rifle The M20 recoilless rifle is a U.S. 75 mm caliber recoilless rifle T21E12 that was used during the last months of the Second World War and extensively during the Korean War. It could be fired from an M1917A1 .30 caliber machine gun tripod, ...

, an American rifle *

M20 Super Bazooka Bazooka () is the common name for a Man-portable anti-tank systems, man-portable recoilless Anti-tank warfare, anti-tank rocket launcher weapon, widely deployed by the United States Army, especially during World War II. Also referred to as the ...

, an American anti-tank rocket launcher *

M20 SLBM The M20 was a French submarine-launched ballistic missile (SLBM) deployed on the nuclear s from 1977. It was withdrawn from service by 1991. History The M20 was the third member of the MSBS (''Mer-Sol-Balistique-Stratégique'', "sea-ground bal ...

, a French nuclear missile * M20 ballast tractor, the power source of the M19 tank recovery system * M20 TBM, a Chinese tactical ballistic missile *

Miles M.20 The Miles M.20 was a Second World War British fighter developed by Miles Aircraft in 1940. It was designed as a simple and quick-to-build "emergency fighter" alternative to the Royal Air Force's Spitfires and Hurricanes should their production ...

, a Second World War fighter * M20 (rocket), a U.S. Army rocket of World War II

Ships

* - a Swedish minesweeper * - a British M15 class monitor {{Letter-number combination disambiguation