M44

M44 or M-44 may refer to:

Transportation

 * BMW M44, an inline 4 gasoline engine produced by BMW
 * M-44 (Michigan highway), a state highway in Michigan
 * M44 (Cape Town), a Metropolitan Route in Cape Town, South Africa
 * M44 (Johannesburg), a Metropolitan Route in Johannesburg, South Africa
 * M44 motorway (Hungary), an under-construction motorway
 * MÁV Class M44, the Polish code-name for a Hungarian shunting diesel locomotive

Weaponry

 * 44M Tas, a Hungarian medium/heavy tank design of World War II
 * ALFA M44, a Spanish machine gun developed during World War II
 * Hungarian 44M, an unguided anti-tank rocket designed by Hungary in World War II
 * M44 generator cluster, an American chemical cluster bomb
 * M44 self propelled howitzer, 1950s US self-propelled 155 mm artillery
 * Panssarimiina m/44, a Finnish anti-tank blast mine
 * Tikkakoski M44, a Finnish submachine gun
 * A model of the Mosin–Nagant, a Russian bolt-action rifle
 * A Yugoslav People's Army's internal designation of SU-100 self-propelled gun

Other uses

 * IBM M44/44X, an experimental IBM mainframe from the 1960s
 * M44 (cyanide device), a device used to poison predators
 * Messier 44 (M44), an open star cluster also called the Beehive Cluster
 * Progress M-44, a spacecraft used to resupply the International Space Station
 * USS Vigor (AM-473), a U.S. Navy Agile-class minesweeper
 * The 44th Mersenne prime