SSA may refer to:

Geography

Organizations

* Safe Schools Alliance, a British advocacy group * SSA Global Technologies, American software company acquired by Infor Global Solutions *

Shan State Army The Shan State Army ( my, သျှမ်းပြည်တပ်မတော်; abbreviated SSA) was one of the largest insurgent groups that fought government forces in Shan State, Myanmar (Burma). The SSA was founded in 1964 after the m ...

, a former insurgent group in Burma *

Slovak Society of Actuaries The Slovak Society of Actuaries (SSA, sk, Slovenská spoločnosť aktuárov) is the association of actuaries in Slovakia. The Society was established in 1996. It is a full member of the International Actuarial Association and the Groupe Consultatif ...

( sk, Slovenská spoločnosť aktuárov), professional association in Slovakia *

Soaring Society of America The Soaring Society of America (SSA) was founded at the instigation of Warren E. Eaton to promote the sport of gliding, soaring in the United States of America, USA and internationally. The first meeting was held in New York City in the 330 West 4 ...

, American sporting society founded in 1932 * Society of Scottish Artists, artists society founded in 1891 *

Swedish Society of Radio Amateurs The Swedish Society of Radio Amateurs ( sv, Föreningen Sveriges Sändareamatörer, SSA) is a national non-profit organization for amateur radio enthusiasts in Sweden. Key membership benefits of the SSA include the sponsorship of amateur radio o ...

, an amateur radio organization * Singapore Scout Association, youth movement founded 1910 *

Seismological Society of America The Seismological Society of America (SSA) is an international scientific society devoted to the advancement of seismology and the understanding of earthquakes for the benefit of society. Founded in 1906, the society has members throughout the wor ...

, international scientific society founded1906 * Scottish Socialist Alliance, a coalition of left-wing bodies, fore-runner to the Scottish Socialist Party * Shipconstructors' and Shipwrights' Association, a former British trade union * Sainsbury's Staff Association, of

Sainsbury's J Sainsbury plc, trading as Sainsbury's, is the second largest chain of supermarkets in the United Kingdom, with a 14.6% share of UK supermarket sales. Founded in 1869 by John James Sainsbury with a shop in Drury Lane, London, the company w ...

, UK * Sudan Studies Association, US professional association * Society for the Study of Addiction, UK learned society with charitable status *

Steamship Authority The Woods Hole, Martha's Vineyard and Nantucket Steamship Authority, doing business as The Steamship Authority (''SSA''), is the statutory regulatory body for all ferry operations between mainland Massachusetts and The Islands (Massachusetts), the ...

, a Massachusetts ferry service and regulatory body

Education

* School of Saint Anthony, Quezon City, Philippines *

Secular Student Alliance The Secular Student Alliance (SSA) is an American educational nonprofit organization whose purpose is to educate high school and college students about the value of scientific reason and the intellectual basis of secularism in its atheistic an ...

, US *

Shady Side Academy } Shady Side Academy is an independent preparatory school located in the Borough of Fox Chapel (suburban Pittsburgh), and in the Point Breeze neighborhood of Pittsburgh, Pennsylvania. Founded in 1883 as an all-male night school in the Shadyside ...

, Pittsburgh, Pennsylvania, US

Government

Social Security Administration The United States Social Security Administration (SSA) is an independent agency of the U.S. federal government that administers Social Security, a social insurance program consisting of retirement, disability and survivor benefits. To qualify fo ...

of the US government *

Social Security Agency (Northern Ireland) {{Use dmy dates, date=April 2022 The Social Security Agency is a government agency in Northern Ireland. It is a department within the Department for Communities The Department for Communities (DfC, Irish: ''An Roinn Pobal'', Ulster Scots: ' ...

* State Security Agency (South Africa), the South African intelligence service * Selective Service Act of 1917, an American piece of legislation signed by President

Woodrow Wilson Thomas Woodrow Wilson (December 28, 1856February 3, 1924) was an American politician and academic who served as the 28th president of the United States from 1913 to 1921. A member of the Democratic Party, Wilson served as the president of P ...

during WWI that established nationwide conscription

Computing

* Software Security Assurance * Serial Storage Architecture * Singular Spectrum Analysis * Stationary Subspace Analysis *

Static single-assignment form In compiler design, static single assignment form (often abbreviated as SSA form or simply SSA) is a property of an intermediate representation (IR) that requires each variable to be assigned exactly once and defined before it is used. Existing var ...

, a property of intermediate representations used in compilers * Stochastic Simulation Algorithm * Strong subadditivity of quantum entropy *

SubStation Alpha SubStation Alpha (or Sub Station Alpha), abbreviated SSA, is a subtitle file format created by CS Low (also known as Kotus) that allows for more advanced subtitles than the conventional SRT and similar formats. It is also the name of the popular ...

and .ssa file format, a video subtitle editor *

Super systolic array In parallel computer architectures, a systolic array is a homogeneous network of tightly coupled data processing units (DPUs) called cells or nodes. Each node or DPU independently computes a partial result as a function of the data received from ...

* Start of Selected Area, a control character in the C1 control code set * Solid State Array, in flash data storage using

solid-state drive A solid-state drive (SSD) is a solid-state storage device that uses integrated circuit assemblies to store data persistently, typically using flash memory, and functioning as secondary storage in the hierarchy of computer storage. It i ...

Science

* Semantic structure analysis * Single-strand annealing in

homologous recombination Homologous recombination is a type of genetic recombination in which genetic information is exchanged between two similar or identical molecules of double-stranded or single-stranded nucleic acids (usually DNA as in cellular organisms but may be ...

Specific surface area Specific surface area (SSA) is a property of solids defined as the total surface area of a material per unit of mass, (with units of m2/kg or m2/g) or solid or bulk volume (units of m2/m3 or m−1). It is a physical value that can be used to dete ...

, a property of solids *

Side-side-angle Solution of triangles ( la, solutio triangulorum) is the main trigonometric problem of finding the characteristics of a triangle (angles and lengths of sides), when some of these are known. The triangle can be located on a plane or on a sphere. Appl ...

in geometry for solving triangles

Medicine

* Senile systemic amyloidosis * Sessile serrated adenoma, a type of pre-malignant intestinal polyp * Special somatic afferent * Anti-SSA/Ro autoantibodies * Sulfosalicylic acid

Other uses

* SSA, Grand Cross of the Order of the Star of South Africa * Deputado Luís Eduardo Magalhães International Airport, IATA Airport code * Same sex attraction * Sarva Shiksha Abhiyan, the Government of India's Education for All programme * Self-sampling assumption * Shared services agreement * Slippery slope argument, a rhetorical device (and often a fallacy) * ESA Space Situational Awareness Programme * Special services area or business improvement district * Special Service Agreement between the UN and a contractor * Supervisory Special Agent * ''

Serious Sam Advance ''Serious Sam Advance'' (also marketed as ''Serious Sam'') is a 2004 first-person shooter game developed by Climax London and published by Global Star Software for the Game Boy Advance. A Spin-off (media), spin-off in the ''Serious Sam'' serie ...

'', a 2004 video game {{disambiguation