| PNR | Antonio-Agostinho-Neto International Airport 
| Others |
| PNR | Pacific Northwest Region
| Others |
| PNR | Pak Navy Recruitment
| Others |
| PNR | Palmtop News Reader
| Others |
| PNR | Panhandle Northern Railroad
| Others |
| PNR | Panhandle Northern Railroad Company
| Others |
| PNR | Paranormal Romance
| Others |
| PNR | Parc Naturel Régional
| Others |
| PNR | Part Number Request
| Others |
| PNR | Partido Nacional Renovador
| Others |
| PNR | Partido Nacional Revolucionario
| Others |
| PNR | Passenger Name Record
| Others |
| PNR | Passenger Name Records
| Others |
| PNR | Passenger Name Reservation
| Others |
| PNR | Passenger Notes of Record
| Others |
| PNR | Peak to Noise Ratio
| Others |
| PNR | Penrith North Lakes
| Others |
| PNR | Percentage of Net Revenue
| Others |
| PNR | Personal Name Record
| Others |
| PNR | Philippine National Railways
| Others |
| PNR | Photo Noise Reduction
| Others |
| PNR | Photoreceptor-cell-specific Nuclear Receptor
| Others |
| PNR | Pick 'n' Roll
| Others |
| PNR | Pick And Roll
| Others |
| PnR | Place and Route
| Others |
| PNR | Point of No Return
| Others |
| PNR | Policía Nacional Revolucionaria
| Others |
| PNR | Polynorborane Rubber
| Others |
| PNR | Post Nut Regret
| Others |
| PNR | Preston New Road
| Others |
| PNR | Private Non Residential Parking
| Others |
| PNR | Production Non-Recurring
| Others |
| PNR | Project Narrative Report
| Others |