M30 or M-30 may refer to:

Science

Messier 30 Messier 30 (also known as M30 or NGC 7099) is a globular cluster of stars in the southeast of the southern constellation of Capricornus, at about the declination of the sun when the latter is at December solstice. It was discovered by the French ...

(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 The Infiniti M is a line of mid-size luxury (executive) cars from the Infiniti luxury division of Nissan. From 2013 (model year 2014) on it has been marketed as the Infiniti Q70, reflecting the company's new naming scheme. The first iteration was ...

, 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 The Charomskiy ACh-30 was a Soviet aircraft diesel engine developed during World War II. The initial version was not very satisfactory and it was cancelled when its factory was forced to evacuate in the autumn of 1941. Production was reinitiated i ...

diesel engine *

Miles M.30 The Miles M.30 X-Minor was an experimental aircraft, designed by Miles Aircraft to evaluate the characteristics of blended fuselage and wing intersections. Design and development Begun in 1938, the X series of designs was Miles designation M ...

, British, experimental aircraft developed during World War II * McLaren M30, 1980 racing car *

Mälar 30 Mälar 30 is a sailboat class designed by Lage Eklund and built in about 120 copies. History Lage Eklund designed the Mälar 30 in 1933 for Mälarens Seglarförbund. The Mälar 30 was a response to the more and more expensive yachts built ac ...

, sailboat class

Roads

* M-30 (Michigan highway), a state highway in southern Michigan *

M30 motorway M3, M-3 or M03 may refer to: Computing and electronics * Intel m3, a brand of microprocessors * M.3 (aka NF1/NGSFF), a specification for internally mounted expansion cards * Leica M3, a landmark 35mm rangefinder camera * Modula-3 (M3), a prog ...

, 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) The M30 is a metropolitan route in Johannesburg, South Africa connecting Florida in the west with Lombardy East and Edenvale. Route The M30 begins at the Ontdekkers Road M18 in Delarey. It heads east as Mollie Road before turning north-eas ...

, a Metropolitan Route in Johannesburg, South Africa *

Highway M30 (Ukraine) M30 is a Ukrainian international highway ( M-highway) formed on 28 April 2021, with the merger of the M04 and the M12. The Stryi-Debaltseve section is part of the European route E50, the section from Debaltseve to the Russian border is part of ...

* M30 (Pretoria), a Metropolitan Route in Pretoria, South Africa * M30 (Durban), a Metropolitan Route in Durban, South Africa *

M30 (Bloemfontein) Mangaung (Bloemfontein metropolitan area) like most South African metropolitan areas, uses Metropolitan or "M" routes for important intra-city routes, a layer below National (N) roads and Regional (R) roads. Each city's M roads are independent ...

, 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 The M30 106.7 mm (4.2 inch, or "Four-deuce") heavy mortar is an American rifled, muzzle-loading, high-angle-of-fire weapon used for long-range indirect fire support to infantry units. Design The M30 system weighs including the complete m ...

, an American heavy mortar * M-30 122 mm howitzer, a Soviet howitzer * M30 Luftwaffe drilling, a World War II-era, survival combination gun {{Letter-NumberCombDisambig