MSS is the Ministry of State Security for China.
MSS may also refer to:
Places Manassas (Amtrak station) (station code), Virginia, US Massena International Airport (IATA code), New York, US Moses Gate railway station (National Rail station code), England
Organizations
Education
Canada Midland Secondary School
China Marymount Secondary School, Hong Kong
Singapore Marsiling Secondary School, a secondary school in Woodlands Meridian Secondary School, a secondary school in Pasir Ris Montfort Secondary School, a secondary school in Hougang
United Kingdom and British Overseas Territories Monkton Combe School, near Bath, England (for Monkton Combe Senior School) Montserrat Secondary School, Salem, Montserrat (British Overseas Territory)
United States Meskwaki Settlement School, Tama County, Iowa
Other Master of Social Science, a postgraduate degree Master of Strategic Studies, awarded by military colleges such as Marine Corps University
Other organizations Ministry for State Security (disambiguation), multiple organizations Merseyside Skeptics Society, UK, for scientific scepticism The Mother's Service Society, a social science research institute in Pondicherry, India Manufacturers Standardization Society, an organization in the valve and fittings industry
Science and technology
Computing Managed security service, in outsourced networks IBM 3850 Mass Storage System Maximum segment size, a TCP header parameter in computer networking Microsoft Search Server Miles Sound System, a sound software development kit for video games
Other science and technology Marshall–Smith syndrome, characterized by unusual accelerated skeletal maturation Microsatellite stability, in genetics Multispectral Scanner, on Landsat satellites Mobile satellite service, in telecommunications Mobile Servicing System, a robotic system on board the International Space Station Mobile switching centre server, in mobile telephony Monosulfide solid solution, a phase of paragenesis
Other uses Mario Super Sluggers, a baseball video game for the Nintendo Wii Modern Shetlandic Scots, a name for Shetland dialect used by some linguists Modular Sleep System, a US forces sleeping bag MSS or Mss., an abbreviation for manuscripts (handwritten documents) Movable scaffolding system, used for construction of concrete bridges A US Navy hull classification symbol: Minesweeper (Special device) (MSS) Music source separation, a technique of separating one audio track into multiple audio tracks