S52 may refer to:
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S52 (New York City bus)
The Metropolitan Transportation Authority (MTA) operates a number of bus routes in Staten Island, New York, United States. Some of them are the direct descendants of streetcar lines (see list of streetcar lines in Staten Island). Many routes run ...
, serving Staten Island
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BMW S52
The BMW M52 is a straight-6 DOHC petrol engine which was produced from 1994 to 2000. It was released in the E36 320i, to replace the M50. The BMW S52 engine is a high performance variant of the M52 which powered the American and Canadian market E ...
, an automobile engine
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Expressway S52 (Poland)
Expressway S52 is an expressway under construction in Poland, which is located in the Silesian and Lesser Poland voivodeships. Upon completion it will connect the border of the Czech Republic in Cieszyn-Boguszowice along with the Expressway R48 ...
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S52: Not recommended for interior use on large surface areas, a safety phrase
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SIAI S.52, an Italian prototype fighter aircraft
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Sikorsky S-52
The Sikorsky S-52 is a utility helicopter developed by Sikorsky Aircraft in the late 1940s. It was used by the U.S. Navy, Marine Corps, and Coast Guard.Donald 1997, p. 840. The S-52 was the first US helicopter with all-metal rotor blades. Initial ...
, an American helicopter
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Shorland S52, a British armoured car
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