YDA
| Acronym | Definition |
|---|---|
| YDA | Yesterday |
| YDA | Young Democrats of America |
| YDA | Youth Development Academy |
| YDA | Youth Development Associate (various organizations) |
| YDA | Yugioh Duelist Arena (gaming chat) |
| YDA | Yorkshire District Association (UK) |
| YDA | Youth Delegate Application (summer camp; various locations) |