| Acronym | Definition |
|---|
| NPPO➣National Plant Protection Organization |
| NPPO➣NASA (National Aeronautics and Space Administration) Parts Project Office |
| NPPO➣National Public Procurement Office |
| NPPO➣Non-Project Procurement Organisation (UK) |
| NPPO➣Navy Program Planning Office |
| NPPO➣Navy Publications & Printing Office |