| Acronym | Definition |
|---|
| ONP➣Optical Network Planner |
| ONP➣Open Network Processor |
| ONP➣Open Network Provision |
| ONP➣Overlay Network Provider |
| ONP➣Olympic National Park |
| ONP➣Open Network Provision(ing) |
| ONP➣Old Newspapers (pulp and paper inustry) |
| ONP➣Office of Nuclear Physics (US Department of Energy) |
| ONP➣Omega Natural Polarity (India) |
| ONP➣One Nation Party |
| ONP➣Operation Na Pali (gaming) |
| ONP➣Omron Network Products (Pleasanton, CA) |
| ONP➣Old National Pike (various locations) |
| ONP➣Orthotics and Prosthetics |
| ONP➣One Night Process |
| ONP➣Office National des Postes du Mali (National Post Office of Mali) |
| ONP➣Organized Noize Productions, Inc. |
| ONP➣Optical Network Protector (Delaire) |