PIFF
| Acronym | Definition |
|---|---|
| PIFF | Pusan International Film Festival (South Korea) |
| PIFF | Protected Interoperable File Format |
| PIFF | Provincetown International Film Festival (Massachusetts) |
| PIFF | Plymouth Independent Film Festival (Plymouth, MA) |
| PIFF | Project Initiation Feasibility Form |
| PIFF | Publications of the Institute of Federalism Fribourg (Fribourg, Switzerland) |