| Acronym | Definition |
|---|
| TOSD➣Teacher of Students with Disabilities (various locations) |
| TOSD➣Test Operating System (computing) |
| TOSD➣Third Order of Saint Dominic (Catholicism) |
| TOSD➣The Online Shop Designer (Chirnside Park, VIC, Australia) |
| TOSD➣Twin Oaks Software Development |
| TOSD➣Transport and OSS Solutions Development (Sprint) |
| TOSD➣Training Operation and Support Division |
| TOSD➣Tactical Operations Systems Division(s) |
| TOSD➣Typical Ozone Season Day (air emissions) |