M43

M43 may refer to:

• M43 BZ cluster bomb
• M43 field cap, a piece of German headgear
• M-43 (Michigan highway), a state highway in Michigan
• M43 (Johannesburg), a Metropolitan Route in Johannesburg, South Africa
• M43 (Pretoria), a Metropolitan Route in Pretoria, South Africa
• M43 mortar, a Soviet weapon
• M43 Howitzer Motor Carriage, an American self-propelled artillery vehicle
• M43 motorway (Hungary), a Hungarian Motorway
• BMW M43, a 1991 automobile piston engine
• Dodge M43, the ambulance variant of the Dodge M37
• Messier 43, a nebula near the Orion Nebula
• M43, the original designation for the 7.62×39mm Soviet carbine and rifle round
• the 43rd Mersenne prime
• Micro Four Thirds system lens mount standard for mirrorless interchangeable lens digital cameras
• Model 43 grenade, a German hand grenade introduced during World War II
• M43 Postcode in Greater Manchester