| Acronym | Definition |
|---|
| IOPP➣Institute of Packaging Professionals |
| IOPP➣International Oil Pollution Prevention |
| IOPP➣Institute of Physics Publishing |
| IOPP➣International Organization of Performing Poets |
| IOPP➣Institute of Physics Press (Institute of Physics; Philadelphia, PA) |
| IOPP➣Inadvertent Overrun and Payback Policy |