| Abbreviation | Definition |
|---|---|
| S.A.R.S. | Severe Acute Respiratory Syndrame |
| S.B.E. | State Board of Education |
| S.C. | Scheduled Caste |
| S.D.M. | Sub Divisional Magistrate |
| S.D.O. | Sub Divisional Officer |
| S.G.P.C. | Shiromani Gurudwara Parbandhak Committee |
| S.H.O. | Station House Officer |
| S.I.E. | State Institute of English |
| S.I.M.I. | Students Islamic Movement of India |
| S.I.S.E. | State Institute of Science Education |
| S.L.A. | Senior Laboratory Assistant |
| S.L.C. | School Leaving Certificate |
| S.P. | Superintendent of Police |
| S.T.E. | Special Trust Fund |
| S.U.P.W. | Socially Useful Productive Work |
| S.Y.L. | Sutlej Yamuna Link Canal |
| S/PDIF | Sony/Philips Digital Interface Format |
| S/T | Pseudo - Ternary |
| SA | Set Access |
| SA | Shift Amount |
| SA | Starting Address |
| SA | Sort Address |
| SA | System Administrator |
| SA | Shopping Assistant |
| SA | Sustainable Agriculture |
| SAA | Senior Accredited Appraiser |
| SAA | System Assurance Analysis |
| SAA | South Atlantic Anomaly |
| SAA | Satellite Active Archive |
| SAAC | Schedule Allocation and Control |
| SAALC | San Antonio Air Logistics Center |
| SAAM | Special Air Force Airlift Mission |
| SAAMA | San Antonio Air Material Area |
| SAAOL | Science and Art of Living |
| SAARC | South Asian Association for Regional Cooperation |
| SAAS | Shuttle Aerosurface Actuator Simulation |
| SAB | Storage and Assembly Building |
| SAB | Spacecraft Assembly Building |
| SAB | Shuttle Avionics Breadboard |
| SAB | Spontaneous Abortion |
| SABA | Supplied Air Breathing Apparatus |
| SAC | Space Application Centre |
| SAC | Science Advisory Council |
| SAC | Social Action Coordinator |
| SAC | Support Action Center |
| SAC | Strategic Air Command |
| SAC | Shuttle Action Center |
| SAC | Special Areas of Conservation |
| SAC | Special Area of Conservation |
| SAC | Science Advisory Committee |