M52, M/52 or M-52 may refer to:
== Military == M/52 (rifle) M52 rifle grenade M52 self-propelled howitzer, a 1950s US 105 mm artillery MEMS M-52/60, a submachine gun Macchi M.52, a 1920s Italian racing seaplane Miles M.52, a 1942 British supersonic jet project Myasishchev M-52, the second prototype of a Soviet supersonic bomber
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).