M55 or M-55 may refer to:

Military

  • M55 (rocket), a nerve agent-filled American Cold War-era rocket
  • Myasishchev M-55, a Soviet reconnaissance aircraft
  • M55 self propelled howitzer, an American self-propelled artillery piece
  • M55 machine gun trailer mount, an American quadruple .50 caliber machine gun system based on the M45 Quadmount
  • Zastava M55, a Yugoslav/Serbian anti-aircraft gun
  • Tikka M55, a Finnish rifle
  • M55, a folding stock version of the M50 Reising submachine gun
  • M-55S, a Slovenian tank, a modernization of the T-55
  • M55 helmet, a Finnish variant of the Stahlhelm

Science and technology

  • Messier 55 (M55), a globular cluster in the constellation Sagittarius
  • M55, a Samsung Sens laptop computer model
  • Siemens M55, a mobile phone
  • Cortex-M55, an ARM Cortex-M processor core
  • ThinkCentre M55, a ThinkCentre M series PC

Transportation

  • M55 (New York City bus), a New York City Bus route in Manhattan

Roads

  • M55 motorway, a road in Lancashire, United Kingdom, connecting Blackpool and the M6 at Preston
  • M55 highway (Russia), a 1113 km road connecting Irkutsk and Chita
  • M-55 (Michigan highway), a road in Michigan connecting Lake Huron and Lake Michigan
  • M55 (Cape Town), a Metropolitan Route in Cape Town, South Africa

Other uses

  • M 55, an age group for Masters athletics

See also

  • MLV (disambiguation)
  • Model 55 (disambiguation)