S52 may refer to:
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S52 (New York City bus), 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 ...
, an automobile engine
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Expressway S52 (Poland)
Expressway S52 is a Polish highway under construction with a planned length of , located in the Silesian and Lesser Poland voivodeships. Upon completion it will connect the border of the Czech Republic in Cieszyn (along with the D48 motorway) ...
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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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