| SSRD | Safety and Systems Review Directorate 
| Others |
| SSRD | Sales Stock Run Down
| Others |
| SSRD | School Science Research Development
| Others |
| SSRD | Shifted Square Root Diffusion
| Others |
| SSRD | Sigito Statybos Remonto Darbai
| Others |
| SSRD | Simple Sequence Repeats Database
| Others |
| SSRD | Single Subject Research Design
| Others |
| SSRD | Single System Research Design
| Others |
| SSRD | Single system research designs
| Others |
| SSRD | Snore Stress Relieving Device
| Others |
| SSRD | Social Sciences Research Division
| Others |
| SSRD | Society for Soybean Research and Development
| Others |
| SSRD | Solid State Recording Device
| Others |
| SSRD | Somatic Symptom and Related Disorder
| Others |
| SSRD | Somatic Symptom and Related Disorders
| Others |
| SSRD | South Sea Roller Derby
| Others |
| SSRD | Southland Slashers Roller Derby
| Others |
| SSRD | Specific Science Requirements Document
| Others |
| SSRD | Station Set Requirements Documents
| Others |
| SSRD | Statistics and Services Research Division
| Others |
| SSRD | Student Scholarship Recognition Day
| Others |
| SSRD | Sub System Requirements Document
| Others |
| SSRD | Summer Seasonal Recurrent Dermatitis
| Others |
| SSRD | Sweet Sexual Romantic Dream
| Others |
| SSRD | System Software Requirements Document
| Others |