WIFF
| Acronym | Definition |
|---|---|
| WIFF | Wrack Image File Format |
| WIFF | Wang Image File Format |
| WIFF | Wacky Interchange File Format |
| WIFF | Warsaw International Film Festival (Poland) |
| WIFF | Wazzu Independent Film Festival (Washington State University; Pullman, WA) |
| WIFF | Wakefield International Film Festival (Canada) |
| WIFF | Waste Isolation Pilot Plant (US Department of Energy) |