| Acronym | Definition |
|---|
| PON | Pontiac (Amtrak station code; Pontiac, IL) |
| PON | Pontoon |
| PON | Path of Neo (game) |
| PON | Programma Operativo Nazionale (Italian: National Operational Program) |
| PON | Pekan Olahraga Nasional (National Sports Week; Indonesia) |
| PON | Passive Optical Network |
| PON | Party of No (Republican party slang) |
| PON | Paraoxonase |
| PON | Program on Negotiation |
| PON | Promise of Nursing (Foundation of the National Student Nurses’ Association) |
| PON | Polish Owczarek Nizinny (Polish Lowland Sheepdog) |
| PON | Purchase Order Number (Sprint) |
| PON | Program Opportunity Notice |
| PON | Particulate Organic Nitrogen |
| PON | Petroleum Operations Notice (DTI UK government Department of Trade & Industry) |
| PON | Panel of Neutrals (International Trademark Association) |
| PON | Pump Octane Number |
| PON | Project Order Number |
| PON | Plane of Nightmare (Everquest game) |
| PON | Pacific Online, Inc. (Santa Rosa, California) |
| PON | Port Out Number (telephone porting) |
| PON | Payload Operations Network |
| PON | Periodical Operating Notice |
| PON | Provincial Offence Notice (Canada) |
| PON | Plus Over Normal (marketing/promotion) |
| PON | Procurement Operations Notice |
| PON | Primary Olfactory Neuron |
| PON | Paraffins, Olefins and Naphthenes (biofuel products) |