| STRS | School of Theology and Religious Studies (Catholic University; Washington, DC) 
| Others |
| STRS | School Teachers Retirement System
| Others |
| STRS | Scientific and Technical Research and Services
| Others |
| STRS | Share The Road Safely
| Others |
| STRS | Ship Time Request System
| Others |
| STRS | Short Tandem Repeats These
| Others |
| STRS | Sir Thomas Rich's School
| Others |
| STRS | Sourcesstate Teachers Retirement System
| Others |
| STRS | South Thames Retrieval Service
| Others |
| STRS | Space Telecommunication Radio System
| Others |
| STRS | Space Telecommunications Radio System
| Others |
| STRS | St Thomas Residential School
| Others |
| STRS | State Teacher Retirement System
| Others |
| STRS | State Teachers Retirement Service
| Others |
| STRS | State Teachers Retirement System
| Others |
| STRS | State Teachers Retirement Systems
| Others |
| STRS | State Teachers' Retirement System
| Others |
| STRS | Stimulated Thermal Rayleigh Scattering
| Others |
| STRS | Straight Talk Retirement System (software)
| Others |
| STRS | Strategic Transportation Research Study
| Others |
| STRS | Submarine Technical Repair Standard
| Others |
| STRS | SunGard Trading and Risk Systems
| Others |
| STRS | Supplier Test Report System
| Others |