| Acronym | Definition |
|---|
| OSTD➣Oberstudiendirektor |
| OSTD➣Ontario Society for Training and Development (Canada) |
| OSTD➣Open Source Translation Database (software) |
| OSTD➣Ordnance Standards |
| OSTD➣Ordnance Standard |
| OSTD➣Operational State Transition Description |
| OSTD➣Order Ship Time Days |