SAE

Science, technology, and medicine

Selective area epitaxy, local growth of epitaxial layer through a patterned dielectric mask deposited on a semiconductor substrate
Sepsis-associated encephalopathy, neurological complications of sepsis
Serious adverse event, in a clinical trial
Simultaneous Authentication of Equals, a password authentication protocol in computer networking
Sparse autoencoder, a class of text encoders in machine learning
Subcortical arteriosclerotic encephalopathy, a disease
Sum of absolute errors, in mathematics
Supervised agricultural experience
System Architecture Evolution, the core network architecture of 3GPP's LTE wireless communication standard

Units named after the Society of Automotive Engineers (see below):

SAE, several units of measurement of power; See Horsepower
SAE viscosity number, of motor oils
SAE steel grades
SAE fastener
SAE thread
United States customary units, e.g. inches and miles rather than millimeters and kilometers

South African English, the first-language dialects of English spoken by South Africans
Standard Average European, a sprachbund consisting of the major part of the Indo-European languages
Standard American English (disambiguation), the standardized form of written American English
Southern American English

SAE Institute (formerly the School of Audio Engineering), a private college founded in 1976
- SAE Online (formerly SAE Graduate college), distance learning programs run by SAE Institute
SAE International (originally the Society of Automotive Engineers), a US-based, global professional association and standards developing organization for engineering professionals in various industries
SAE Renewables (formerly SIMEC Atlantis Energy) a renewable energy company incorporated in Singapore, but with headquarters in Edinburgh
SAE – World Council of Hellenes Abroad, the main body representing people of Greek ethnic descent, the Greek Diaspora (Omogeneia) living outside the boundaries of the Greek state
Template:Lang, the Brazilian Intelligence Agency
Sigma Alpha Epsilon, a fraternity
Society of Accountants in Edinburgh, founded in 1853, a predecessor of the Institute of Chartered Accountants of Scotland
Soviet Antarctic Expedition, part of the Arctic and Antarctic Research Institute of the Soviet Committee on Antarctic Research of the Academy of Sciences of the USSR
Stichting Academisch Erfgoed, a Dutch organization

Sae, Harju County, village in Kose Parish, Harju County, Estonia
Sae, Lääne-Viru County, village in Vinni Parish, Lääne-Viru County, Estonia
Shah Alam Expressway, an expressway in Klang Valley, Malaysia
Sae Island, an island within the Western Islands of the Bismarck Archipelago, Papua New Guinea

Sae (given name), a feminine Japanese given name
Sale railway station, Victoria
Société anonyme égyptienne ("Egyptian Anonymous Society"), Egyptian variant of S.A.
Stamped addressed envelope