| Acronym | Definition |
|---|
| SDSA | San Diego Science Alliance |
| SDSA | Synthesis Dependent Strand Annealing |
| SDSA | Set Decorators Society of America |
| SDSA | School Development Support Agency (UK) |
| SDSA | Scottish Down's Syndrome Association |
| SDSA | Select Data Service Administrators |
| SDSA | San Diego Sailing Academy |
| SDSA | South Dakota Soybean Association |
| SDSA | Stroke Drivers Screening Assessment |
| SDSA | Saskatoon & District Soccer Association |
| SDSA | Secondary Surge Arrester |
| SDSA | San Diego Shoulder Arthroscopy |
| SDSA | San Diego Surfing Academy |
| SDSA | Samsung Data Systems America |
| SDSA | San Diego Screenwriters Association |
| SDSA | Software Development and Support Activity |
| SDSA | Subsecretaría de Desarrollo y Simplificación Administrativa |
| SDSA | South Davis Soccer Association |
| SDSA | Structure-Dependent Sequence Alignment |
| SDSA | Subminiature Digital Speech Aid |
| SDSA | Structure and Dynamics of Solar Atmosphere |
| SDSA | Scotia District Soccer Association |
| SDSA | Stanford Deputy Sheriffs' Association (Stanford University) |
| SDSA | San Diego Soccer Alliance |
| SDSA | Soham & District Sports Association (UK) |
| SDSA | Syntax-Driven Semantic Analysis |
| SDSA | Standard Detailed Site Assessment (Canada) |
| SDSA | Southern District Support Association (Australia) |
| SDSA | Sharp Document Solutions Company of America |
| SDSA | South Dakota Sheriffs' Association |
| SDSA | South Dakota Snowmobiling Association |
| SDSA | Shalini and Dave Sinha Austin Promotions (UK motorhome rental business) |
| SDSa | Sodium N-Dodecanoylsarcosinate |
| SDSA | Semantic Differential Self-concept Assessment |
| SDSA | Senior Director, Scientific Affairs |
| SDSA | Single Dose Spinal Anaesthesia |
| SDSA | Seaman Apprentice, Steward Striker (Naval Rating) |
| SDSA | Sodium Dodecane Sulfonic Acid |
| SDSA | Students Debating Association of South Australia |
| SDSA | State Drug Supervisory Administration |
| SDSA | Spin-Dependent Scattering Asymmetry |
| SDSA | Standard Distributor Sales Agreement |