Miscellaneous
- Savannah River Site, a nuclear reservation in the United States
- Secretary of the Royal Society, the secretary of a UK-based organization for academic disciplines in science
- Socialist Republic of Serbia, extant 1943–1990
- Standard RPG System, a Japanese role-playing game system
- Stealth Recon Scout, a sniper rifle made by Desert Tactical Arms
- Spaced repetition system, a memorisation technique
Read more about this topic: SRS