| Acronym | Definition |
|---|
| OTDT➣Országos Tudományos Diákköri Tanács (Hungary: Council of National Scientific Students' Associations) |
| OTDT➣Organ and Tissue Donation and Transplantation |
| OTDT➣Object Teams Development Tooling (open source software) |
| OTDT➣O'Connor Tweezer Dexterity Test (rehabilitation medicine) |