MS, ms, Ms, M.S., etc. may refer to:

Arts and entertainment

* Ms. (magazine), ''Ms.'' (magazine), an American feminist magazine * Metal Storm (webzine), a heavy metal website based in Estonia

Businesses and organizations

* MS-13, criminal gang * Missionaries of La Salette, a Catholic male religious order * Young Socialists (Poland), Młodzi Socjaliści (Young Socialists), a former Polish socialist youth organization * Morgan Stanley, a US investment bank (NYSE stock symbol: MS) * Mjólkursamsalan, an Icelandic dairy company

Educational qualifications

* Master of Science, a master's degree in the field of science * Master of Surgery, an advanced medical degree * Master Sommelier, a terminal degree in the field of wine * '' Mastère spécialisé'', a French postgraduate ''grande école'' master's degree

Medicine

* Mitral valve stenosis, Mitral stenosis, narrowing of the mitral valve of the heart * Morphine sulfate, an opiate pain-relieving drug * Multiple sclerosis, a disease of the nervous system

Military

* Master seaman, a non-commissioned member rank of the Canadian Navy * Mess Management Specialist, a former U.S. Navy occupational rating now covered by culinary specialist (United States Navy), culinary specialist

Places

* Mato Grosso do Sul, Brazil, postal code MS * Mississippi, a U.S. state, official abbreviation * Montserrat, Caribbean island nation (ISO 3166-2 country code: MS)

Science and technology

Computing

* .ms, the top level Internet domain for Montserrat in the Caribbean * Master System, a third-generation video game console produced by Sega * Microsoft, an American-based global software company * Mobile station, a piece of equipment for communication with a mobile network

Units of measure

* Megasiemens (MS), and millisiemens (mS), multiples of the unit of electric conductance siemens * Metre per second (m/s), a unit of velocity (speed) * Mile per second (m/s), a unit of velocity (speed) * Millisecond (ms), a unit of time equal to one thousandth of a second

Other uses in science and technology

* Surface-wave magnitude (M_s), a seismic scale * Solar mass (M_S), an alternate symbol to M_⊙ * Mass spectrometry, a method of determining the chemical composition or exact mass of molecules * Master of Science, a postgraduate university master's degree * Mesylate, a chemical salt * Spin quantum number,

m_s

Transportation

* Egyptair, by its IATA code "MS" * Motor ship, ship prefix * Chennai Egmore railway station, code MS

Other uses

* Ms., a common title for women that does not indicate marital status * MS (cigarette), an Italian brand of cigarettes * MS (satellite), a series of four Soviet satellites launched in 1962 * Malay language, of Southeast Asia (ISO 639-1 language code: ms) * Manuscript, abbreviation (ms.) for a written or typed document * Member of the Senedd (formerly ''Assembly Member''), Welsh Parliament legislator * Memoriae Sacrum (Latin for "Sacred to the Memory"), an epitaph * Multan Sultans, a professional Twenty20 franchise cricket team in the Pakistan Super League