M115, M1 15 or M-115 may refer to:
*
M115 203 mm howitzer, a towed howitzer used by the United States Army
*
M115 bomb
The M115 anti-crop bomb, also known as the feather bomb or the E73 bomb, was a U.S. biological cluster bomb designed to deliver wheat stem rust.
History
Mass production of the M115 bomb began in 1953. The weapon was a modified M16A1 cluster bomb, ...
, a 500-pound anti-crop biological weapon
*
M-115 (Michigan highway), a state highway in Michigan
*
Mercedes-Benz M115 engine
*
M1 15, an electrical tram in Gothenburg, Sweden.
{{Letter-Number Combination Disambiguation