Arts, entertainment & media
* WD-M01 Turn A Gundam, a mecha from the anime ''Turn A Gundam'' * M-1 (rapper), one half of hip hop duo Dead Prez * Korg M1, a keyboard synthesizer * Leica M1, a 1959 35 mm camera model * Olympus OM-1, a 1972 manually operated 35mm single-lens reflex camera * M1 (TV channel), news channel of the Hungarian MTVA * M-1 (Lithuanian radio station) * M1 (Ukraine), a television channelEconomics and finance
* M1 (money supply measure), in economics, a measure of the money supply * M1 Finance, an online financial services companyMilitary equipment
Vehicles
US Armed Forces * M1 Abrams, a main battle tank * M1 Armored Car * M1 Combat Car, an early tank * M1 Light Tractor * M1 Medium Tractor * M1 Heavy Tractor Other * Bristol M.1, a 1916 British fighter aircraft * (M1), a WWI Royal Navy monitor * (1919), an early British submarine * , a List of mine warfare vessels of the Swedish Navy, Swedish Navy mine sweeper * , a Swedish Royal Navy mine layerWeapons
US Armed Forces * 120 mm gun M1, an anti-aircraft gun * 20 mm aircraft gun M1 or French Hispano-Suiza HS.404 * 240 mm howitzer M1, WWII * 37 mm gun M1, anti-aircraft * 40 mm automatic gun M1 or Swedish Bofors 40 mm Automatic Gun L/60 * 57 mm gun M1, or British Ordnance QF 6-pounder * 8-inch gun M1, or M115 howitzer * 90 mm gun M1, dual-purpose gun * M1 bayonet * M1 carbine, WWII * M1 chemical mine, WWII * M1 flamethrower, WWII * M1 frangible grenade, WWII * M1 Garand, WWII rifle * M1 helmet * M1 mortar * M1 rocket launcher "Bazooka", WWII rocket launcher * M1 Thompson carbine * M1 Thompson submachine gun * M1 underwater defense gun, or Underwater Defense Gun Mark 1 Mod 0 Other * 35.5 cm Haubitze M1, a German WWII howitzer * Benelli M1, a semi-automatic shotgun * Guncrafter Industries M1 or Model No. 1, a handgun * M1 (missile), FrenchScience and technology
* the Crab Nebula, also known as Messier object M1 * ATC code M01 ''Anti-inflammatory and antirheumatic products'', a subgroup of the Anatomical Therapeutic Chemical Classification SystemComputing
* a codename for Cyrix 6x86 processor * M1-DA, M1, or VESA Plug and Display connector * a part number for a 1N400x general-purpose diode * Apple M1 system on a chipBiology
* Primary motor cortex or M1, a symbol of the primary motor cortex in mammals in neurology * M1 protein, a matrix protein of the influenza virus * Muscarinic acetylcholine receptor M1, a receptor in the human autonomic nervous system * British NVC community M1, ''Sphagnum auriculatum'' bog pool community * 20-O-beta-D-glucopyranosyl-20(S)-protopanaxadiol, a ppd-type monoglucoside ginsenoside metabolized by intestinal bacteria * M1 macrophage, a phenotype of macrophageMedicine
* Slang name for methyloneRoads and railways
Railways
* Bucharest Metro Line M1, part of the Bucharest Metro, Romania * Chesapeake and Ohio class M-1, a steam-turbine locomotive * Line 1 (Budapest Metro), the first line of Budapest Metro, Hungary * M-1 Rail Line, now the QLine, streetcar service in Detroit * M1 (Copenhagen), part of the city's Metro system, Denmark * M1 (Istanbul Metro), a light railway system in Istanbul, Turkey * M1 (Lausanne Métro), part of the Lausanne Metro in Switzerland * M1 (Paris Métro), the first rolling stock on the Paris Metro in 1900 * M1 (İzmir Metro) * M1/M3 (railcar), a series of electric multiple unit cars on the Long Island Rail Road and Metro-North Railroad * Metro M1 (Prague), metro kit M1, which is used on line C of the Prague Metro * Milan Metro Line 1 * PRR M1, a class of steam locomotiveRoads
* M1 road (Australia), different sections of the A1 highway ** M1 (New South Wales) ** M1 (Queensland) ** M1 (Victoria) * Metroad 1, a road in Sydney, Australia * M-1 (Michigan highway), a road in the United States that runs from Detroit northwesterly to Pontiac * M1 highway (Belarus), a road connecting the border with Poland and the border with Russia * M1 highway (Russia), a road connecting Moscow and the border with Belarus *M1 (East London), a Metropolitan Route in East London, South Africa *M1 (Johannesburg), a Metropolitan Route in Johannesburg, South Africa *M1 (Pretoria), a Metropolitan Route in Pretoria, South Africa *M1 (Durban), a Metropolitan Route in Durban, South Africa *M1 (Port Elizabeth), a Metropolitan Route in Port Elizabeth, South Africa * M1 motorway (Hungary), a road connecting Budapest and Győr * M1 motorway (Northern Ireland), a road connecting Belfast and Dungannon * M1 motorway (Pakistan), a road connecting Peshawar and Rawalpindi * M1 motorway (Republic of Ireland), a road connecting Dublin to the border with Northern Ireland * M1 motorway, a road in England connecting London and Leeds * Highway M01 (Ukraine), a road connecting Kyiv and the border with Belarus * M1 Road (Zambia)Bus
* Route 52 (MTA Maryland), Route M-1 (MTA Maryland), a bus route in Baltimore, Maryland and its suburbs * M1 (New York City bus), a New York City Bus route in ManhattanVehicles
* M1 category vehicle, a classification of passenger vehicles under the United Nations Economic Commission for EuropeAviation and aerospace
* M-1 (rocket engine), the largest liquid Hydrogen and LOx rocket engine ever built * Martin M-1, glider * Matteson M-1, glider * Miles Satyr, Miles M.1 Satyr, a 1930s British single-seat aerobatic biplane * Verville-Sperry M-1 Messenger - 1922Automobiles
* BMW M1, a German mid-engined sports car * Great Wall Haval M1, a Chinese subcompact crossover * Minardi M01, an Italian 1999 Formula One racing car * Riich M1, a Chinese city carMotorcycles
* Yamaha YZR-M1, a Japanese motorcycleMiscellaneous
* M-1 Global or M-1 Mixfight, a mixed martial arts sports organization * M-1 visa, a vocational training student visa for the USA * M1 (Singaporean company), a telecommunications company in SingaporeSee also
* Model 1 (disambiguation) * 1M (disambiguation) * ML (disambiguation) * MI (disambiguation) {{Letter-Number Combination Disambiguation