M30 or M-30 may refer to:
Science Messier 30 (M30), a globular cluster in the constellation Capricornus
Transportation Vehicles BMW M30, a 1968 automobile piston engine HMS M30, a 1915 British Royal Navy vessel of World War 1 Infiniti M30, a luxury coupe sold in the United States M30, the pennant number for the Royal Navy ship, HMS Ledbury M-30, the Charomskiy ACh-30 diesel engine Miles M.30, British, experimental aircraft developed during World War II McLaren M30, 1980 racing car Mälar 30, sailboat class DJI Matrice 30, a Chinese industrial drone
Roads M-30 (Michigan highway), a state highway in southern Michigan M30 motorway, a Madrid orbital motorway in Spain M30 motorway (Hungary), a motorway in Hungary M30 (Cape Town), a Metropolitan Route in Cape Town, South Africa M30 (Johannesburg), a Metropolitan Route in Johannesburg, South Africa Highway M30 (Ukraine) M30 (Pretoria), a Metropolitan Route in Pretoria, South Africa M30 (Durban), a Metropolitan Route in Durban, South Africa M30 (Bloemfontein), a Metropolitan Route in Bloemfontein, South Africa M30 (Pietermaritzburg), a Metropolitan Route in Pietermaritzburg, South Africa
Other M30 (New York City bus), a former New York City Bus route in Manhattan
Weapons A type of US rocket used by the M142 and M270 Multiple Launch Rocket Systems A rocket fired by the Soviet Katyusha rocket launcher M30 107 mm Mortar, an American heavy mortar M-30 122 mm howitzer, a Soviet howitzer M30 Luftwaffe drilling, a World War II-era, survival combination gun
See also Model 30 (disambiguation)