S37 may refer to:
Aviation Blériot-SPAD S.37, a French biplane airliner Sikorsky S-37, an American sesquiplane Smoketown Airport, in Lancaster County, Pennsylvania, United States Sukhoi S-37, an experimental Russian jet fighter
Other uses County Route S37 (Bergen County, New Jersey) S37: Wear suitable gloves, a safety phrase SREC (file format), an ASCII encoding format for binary data Sulfur-37, an isotope of sulfur Taungurung language , a submarine of the United States Navy