SGA

SGA may refer to:


 * Old Irish language (ISO 639-2 & -3 code)
 * Schwarz-Gelbe Allianz (Black-Yellow Alliance), an Austrian political party
 * Second-generation antipsychotics
 * Séminaire de Géométrie Algébrique du Bois Marie, an influential mathematical seminar and the series of books it produced.
 * SGA Airlines (Siam General Aviation), a regional airline in Thailand
 * SG&A, Selling, General and Administrative expenses in income statements
 * Simple Genetic Algorithm
 * Small for gestational age, babies whose birth weight lies below the 10th percentile for that gestational age
 * Society of Graphic Art, a British arts organization founded in 1919
 * Songwriters Guild of America, an organization to help "advance, promote, and benefit" the profession of songwriters
 * Southern Governors' Association
 * Special Geographic Area of Bangsamoro, Philippines
 * Standard Galactic Alphabet, the writing system in the Commander Keen fictional universe
 * Stargate Atlantis, an American-Canadian science fiction television series and a spin-off from the television series Stargate SG-1
 * Student Government Association, a student organization dedicated to social and organizational activities of the student body
 * Substantial gainful activity, a term defined by the U.S. Social Security Administration to describe work that involves physical or mental effort and is ordinarily done for pay
 * Swanson Group Aviation, Formerly Superior Helicopter of Glendale, Oregon, a heavy lift helicopter operator
 * Swedish Game Awards, Sweden's largest video game development competition
 * Synthetic genetic array analysis - a high throughput methodology for studying genetic interactions
 * System Global Area, a shared memory structure that is created by Oracle databases at instance startup
 * Samsung Galaxy Ace, an Android smartphone manufactured by Samsung
 * Segesterone acetate, a progestin medication
 * Shai Gilgeous-Alexander, Canadian professional basketball player
 * Supraglottic Airway, an airway management device