DIFF
| Acronym | Definition |
|---|---|
| DIFF | Difference |
| DIFF | Differential |
| DIFF | Dubai International Film Festival |
| DIFF | Deutsches Institut für Fernstudienforschung (German: German Institute for Distance Education Research) |
| DIFF | Do It For Free |
| DIFF | Dominican International Film Festival |
| DIFF | Dads in Families Foundation (Australia) |
| DIFF | Euro-Rate Differential |