M class or M-class may refer to:

Military

M-class cruiser The M-class cruisers were a class of light cruisers planned, but never built, by Nazi Germany's ''Kriegsmarine'' before World War II. The ships were designed for commerce raiding in the Atlantic Ocean. The design for the first four ships suff ...

, a planned German light cruiser class *

M-class destroyer Several classes of destroyer have been known as "M". These include: * Admiralty M-class destroyer, a class of Royal Navy destroyers built 1913–1916 and that served in World War I ** Hawthorn Leslie M-class destroyer, a variant of the above cla ...

, several classes of destroyer **

Admiralty M-class destroyer The M class, more properly known as the Admiralty M class, were a class of 85 destroyers built for the Royal Navy of United Kingdom that saw service during World War I. All ships were built to an identical – Admiralty – design, hence the c ...

, a class of British destroyers built 1913–1916 and served in World War I ** M-class, British destroyers starting with the letter ''M'' of the

L and M-class destroyer The L and M class was a class of sixteen destroyers which served in the British Royal Navy during World War II. The ships of the class were launched between 1939 and 1942. The L class (also known as the ''Laforeys'') were approved under the ...

, launched 1939–1942 and served in World War II ** ''Marcílio Dias''-class destroyer, Brazilian destroyers built during World War II * ''Karel Doorman''-class frigate, of the Royal Netherlands Navy *

M-class minesweeper Several classes of minesweeper have been named "M". These include: * , a class of minesweepers of the ''Kriegsmarine'' that saw service during World War II * , a class of minesweepers of the Royal Netherlands Navy built after World War I * M-serie ...

, several classes of minesweeper **

M-class minesweeper (Germany) The M class were the standard minesweeper (german: Minensuchboot) of Nazi Germany's ''Kriegsmarine'' during World War II. The vessels were the primary force in Germany's harbor defense command and were organized administratively into minesweepe ...

, a class of minesweepers of the World War II German ''Kriegsmarine'' ** M-class minesweeper (Netherlands), a class of minesweepers of the Royal Netherlands Navy built after World War I * ''Abercrombie''-class monitor, a British WWI class of monitor gunships *

M-class submarine Two classes and a one-ship class of submarine are known as the M class * Soviet M-class submarine, a class of 148 Soviet Navy submarines built between 1933 and 1947 * British M-class submarine, a class of 3 Royal Navy submarine monitors built in ...

, several classes of submarine **

British M-class submarine The British Royal Navy M-class submarines were a small class of diesel-electric submarines built during World War I. The unique feature of the class design was a 12-inch (305 mm) gun mounted in a casemate forward of the conning tower. ...

United States M-class submarine USS ''M-1'' (SS-47) was a unique submarine of the United States Navy. ''M-1'' was designed as a test bed for the newest technology in submarine construction and design. As well as being the world's first double-hulled design (in contrast to Simo ...

Transportation

Mercedes-Benz M-Class Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquartere ...

, an automobile *

M-segment M-segment is the European segments for passenger cars described as "multi purpose vehicles". It covers multi-purpose vehicles, minivans and cargo vans. The minivans (also called MPVs or passenger vans) often have removable rear seating to provid ...

, a European vehicle size class *

NZR M class The NZR M class were a series of four tank engines built in England for the Otago railways Bluff to Winton section. They were acquired by NZR in the late 1870s and rebuilt in the late 1880s. As rebuilt they were not very successful and were used ...

locomotives *

Pennsylvania Railroad class M1 The M1 was a class of steam locomotive of the Pennsylvania Railroad (PRR). It was a class of heavy mixed-traffic locomotives of the 4-8-2 "Mountain" arrangement, which uses four pairs of driving wheels with a four-wheel guiding truck in front for ...

, locomotives * Victorian Railways M class, steam locomotives *

Victorian Railways M class (diesel-hydraulic) The Victorian Railways M class are a diesel-hydraulic powered railway shunting locomotive, based at the Newport workshops of the Victorian Railways in Victoria, Australia. For a period of time the VR had been using old steam locomotives that w ...

, shunting locomotives *

OOCL M-class container ship The M class is a series of 10 container ships built for OOCL with a maximum theoretical capacity of 13,208 TEU. The ships were built by Samsung Heavy Industries in South Korea. Construction started in 2012 and the first ship was delivered in 2013. ...

, a class of large container ships operated by Orient Overseas Container Line *

Maersk M-class container ship The M class is a series of 6 container ships built for Maersk Line. The ships were built by Odense Steel Shipyard in Denmark and have a maximum theoretical capacity of around 11,008 twenty-foot equivalent units (TEU). List of ships See al ...

, a class of large container ships operated by Maersk Line

Astronomy

* ''M class'', a

stellar classification In astronomy, stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a prism or diffraction grating into a spectrum exhibiting t ...

* ''M class'', a class of

solar flare A solar flare is an intense localized eruption of electromagnetic radiation in the Sun's atmosphere. Flares occur in active regions and are often, but not always, accompanied by coronal mass ejections, solar particle events, and other sola ...

Military

Transportation

Astronomy

See also