PNNI
| Acronym | Definition |
|---|---|
| PNNI | Public Network Node Interface |
| PNNI | Private Network to Network Interface |
| PNNI | Private Network-to-Network Interface |
| PNNI | Private Network Node Interface |
| PNNI | Public Network-to-Network Interface |
| PNNI | Palawan NGO (Non-Governmental Organization) Network, Inc. (est. 1991; Palawan, Philippines) |