OSDA
| Acronym | Definition |
|---|---|
| OSDA | Organization for Strategic Development for Africa |
| OSDA | Old School Derby Association (skating) |
| OSDA | Office of Student Development and Activities (New School; New York, NY) |
| OSDA | Oklahoma Self-Defense Act |
| OSDA | Operator Services/Directory Assistance |
| OSDA | Ontario Soft Drink Association |