MS

MS may refer to:

In Medicine:

In science and technology:

Surface wave magnitude (M_s), a type of seismic scale.
Mass spectrometry, a method of determining the chemical composition or exact mass of molecules
Master of Science, a postgraduate university Master's degree
Master of Surgery, an advanced medical degree
Megasiemens (MS) or Millisiemens (mS), units of electric conductance based on the siemens
Memory Stick, a memory card format defined by Sony
Millisecond ms, a unit of time equal to one thousandth of a second
Mobile station, equipment used for communication
Motor ship, a ship propelled by motor
Misznay-Schardin effect
Molecular sieve, abrevation for Molecular sieve

In organisations:

Microsoft, an American software company
Morgan Stanley, an US investment bank with NYSE stock ticker symbol MS, and the domain MS.com
EgyptAir's IATA code
Middle school, in Canada and the USA, a school providing intermediate education
Master Seaman, a non-commissioned member rank of the Canadian Navy
Mess Management Specialist, a U.S. Navy occupational rating superseded by the term Culinary Specialist

In other uses:

Metal Storm (webzine), A Metal webzine often shortened by users as MS.
Malay language's ISO 639-1 language code
Mara Salvatrucha, large criminal gangs in Central America and the U.S.
Mobile Suit, fictional technological machinery of the Gundam universe
Moriah School, a Jewish day school in Englewood, New Jersey
Spesmilo, an obsolete currency unit whose symbol resembles mS
[Moyenne section] Error: {{Lang}}: text has italic markup (help), a French section equivalent to junior kindergarten
Mangekyou Sharingan, an advance eye technique used by certain members of the Uchiha clan in the popular anime series, Naruto.
MySims, a game for the Wii and Nintendo DS

See also