SSA may refer to:

Geography

Sub-Saharan Africa Sub-Saharan Africa is, geographically, the area and regions of the continent of Africa that lies south of the Sahara. These include West Africa, East Africa, Central Africa, and Southern Africa. Geopolitically, in addition to the List of sov ...

Organizations

* Safe Schools Alliance, a British advocacy group *

SSA Global Technologies SSA Global Technologies (previous NASDAQ symbol: SSAG) was a company developing Enterprise resource planning (ERP) software. On May 15, 2006, SSA Global announced that it would be acquired by Infor Global Solutions. The acquisition was completed ...

, 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 ...

, 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, American sporting society founded in 1932 *

Society of Scottish Artists The Society of Scottish Artists is a Scottish artist-run organization which seeks to ''promote and encourage experimentation and the "adventurous spirit" in Scottish art.'' It was founded in 1891 and its main space for annual exhibitions has bee ...

, artists society founded in 1891 * Swedish Society of Radio Amateurs, an amateur radio organization *

Singapore Scout Association The Singapore Scout Association (; ms, Persatuan Pengakap Singapura-PPS; "SSA") is one of the oldest youth movements in Singapore. History Scouting was first introduced in Singapore in 1908 but was officially founded on 2 July 1910. A young S ...

, youth movement founded 1910 * Seismological Society of America, international scientific society founded1906 *

Scottish Socialist Alliance In Scotland, the Scottish Socialist Party (SSP) is a left-wing political party. The party was formed in 1998 from an alliance of left-wing organisations in Scotland. In 1999, it saw its first MSP returned to Holyrood, with five more MSPs electe ...

, 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, UK *

Sudan Studies Association The Sudan Studies Association (SSA) (Arabic: جمعية الدراسات السودانية) is the US-based professional association for scholars of Sudan and South Sudan, with members from the United States, Canada, Sudan, South Sudan, and els ...

, 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, US * Shady Side Academy, Pittsburgh, Pennsylvania, US

Government

* Social Security Administration 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 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 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 drives

Science

Semantic structure analysis Semantic structure analysis (or SSA) is a methodology for systematic description of the intended meaning of natural language, developed by the Summer Institute of Linguistics. The name is also used for Eugene Nida's technique for mapping lexical ...

* Single-strand annealing in homologous recombination * Specific surface area, 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 Wild-type transthyretin amyloid (WTTA), also known as senile systemic amyloidosis (SSA), is a disease that typically affects the heart and tendons of elderly people. It is caused by accumulation of a wild-type (that is to say a normal) protein call ...

Sessile serrated adenoma A sessile serrated lesion (SSL) is a premalignant flat (or sessile) lesion of the colon, predominantly seen in the cecum and ascending colon. SSLs are thought to lead to colorectal cancer through the (alternate) ''serrated pathway''. This diffe ...

, 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 The Order of the Star of South Africa is a South African National Order that consisted of seven decorations in two military and five non-military classes. The order was discontinued on 2 December 2002. Institution The Order of the Star of South ...

* Deputado Luís Eduardo Magalhães International Airport, IATA Airport code *

Same sex attraction Homosexuality is Romance (love), romantic attraction, sexual attraction, or Human sexual activity, sexual behavior between members of the same sex or gender. As a sexual orientation, homosexuality is "an enduring pattern of emotional, romant ...

Sarva Shiksha Abhiyan Sarva Shiksha Abhiyan (), or SSA, is an Indian Government programme aimed at the universalisation of Elementary education "in a time bound manner", the 86th Amendment to the Constitution of India making free and compulsory education to children ...

, the Government of India's Education for All programme *

Self-sampling assumption ''Anthropic Bias: Observation Selection Effects in Science and Philosophy'' (2002) is a book by philosopher Nick Bostrom. Bostrom investigates how to reason when one suspects that evidence is biased by "observation selection effects", in othe ...

* Shared services agreement *

Slippery slope argument A slippery slope argument (SSA), in logic, critical thinking, political rhetoric, and caselaw, is an argument in which a party asserts that a relatively small first step leads to a chain of related events culminating in some significant (usually ...

, a rhetorical device (and often a fallacy) * ESA Space Situational Awareness Programme * Special services area or business improvement district *

Special Service Agreement A Special Service Agreement (SSA) is a contract modality in the United Nations system, establishing a legal relation between the Organization and the individual, where the individual is a contractor or supplier of services, rather than a staff mem ...

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