OTDT
| 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) |