Several classes of

destroyer In naval terminology, a destroyer is a fast, maneuverable, long-endurance warship intended to escort larger vessels in a fleet, convoy, or carrier battle group and defend them against a wide range of general threats. They were conceived i ...

have been known as "M". These include: *

Admiralty M-class destroyer The M class, more properly known as the Admiralty M class, were a class of 85 destroyer In naval terminology, a destroyer is a fast, maneuverable, long-endurance warship intended to escort larger vessels in a fleet, convoy, or carrier ...

, 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 class **

Thornycroft M-class destroyer The Thornycroft M or ''Mastiff'' class were a class of six British destroyers completed for the Royal Navy during 1914–16 for World War I service. They were quite different from the Admiralty-designed ships of the , although based on a basic ...

, a variant of the Admiralty design **

Yarrow M-class destroyer The Yarrow M class was a class of ten destroyers built for the Royal Navy that saw service during World War I. They were generally similar to the standard , but were instead designed by the builder, Yarrow & Company. Generally, they had two inst ...

, a variant of the Admiralty design *

L and M-class destroyer The L and M class was a class of sixteen destroyers which served in the British Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold the ...

, a class of Royal Navy destroyers launched 1939–1942 and that served in World War II * ''Marcílio Dias''-class destroyer, three ships of the Brazilian Navy that served in World War II

See also