SGA
- Black-Yellow Alliance
- Old Irish language
- SGA Airlines
- Same-gender attraction
- Samsung Galaxy Ace
- Second-generation antipsychotics
- Segesterone acetate
- Shai Gilgeous-Alexander
- Sheghnan Airport
- Small for gestational age
- Society of Graphic Art
- Songwriters Guild of America
- Southern Governors' Association
- Special Geographic Area
- Standard Galactic Alphabet
- Stargate Atlantis
- Strong Group Athletics
- Students' union
- Substantial gainful activity
- Swanson Group Aviation
- Swedish Game Awards
- Synthetic genetic array
- System Global Area
- Séminaire de Géométrie Algébrique du Bois Marie