Several classes of destroyer 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 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 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 basi ...

, 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 ins ...

, 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 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 ...

, 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