| P (- number) | Prohibited Area |
| PAC | Pacific (ICAO Region) |
| PANS;OPS | Procedures for Air Navigation Services Operations (ICAO) |
| PAPA | Parallax Aircraft Parking Aid |
| PAPI | Precision Approach Path Indicator |
| PAR | Precision Approach Radar |
| Par | Parallel |
| PARA | Paragraph |
| PAX | Passenger |
| PCL | Pilot Controlled Lighting |
| PCN | Pavement Classification Number |
| PCT | Percent; Percentage |
| PCZ | Positive Control Zone |
| PDC | Pre-Departure Clearance |
| PDC | Performance Data Computer |
| PDR | Predetermined Route |
| PDT | Pacific Daylight Time |
| PEO | Point of Equal Oxygen |
| PERM | Permanentlybrermanent |
| PET | Point of Equal Time |
| PIREP | Pilot Report |
| PISTON | Piston Aircraft |
| PJE | Parachute Jumping Exercise |
| PLASI | Pulsating Visual Approach Slope Indicator |
| PLN | Flight Plan |
| PMS | Performance Management System |
| PIN | Prior Notice Required |
| PNdb | Perceived Noise Decibel |
| PNI | Pictorial Navigation Indicator |
| PNR | Point of no Return |
| PNR | Prior Notice Required |
| POSN | Position |
| PPI | Plan Position Indicator |
| PPL | Private Pilot Licence |
| PPO | Prior Permission Only |
| PPR | Prior Permission Required |
| PRA | Precision Radar Approach |
| PRIM | Precision Radar Monitor |
| PRD | Prohibited; Restricted; Danger Area |
| PRESS | Pressure |
| PRKG | Parking |
| PROC | Procedure |
| PROHIB | Prohibited |
| Proj | Projection |
| PROP | Propeller Aircraft |
| PROV | Provisional |
| PS | Plus |
| PSBL | Possible |
| PSG | Passing |
| PSM | Procedures Specifications Manual |
| PSN | Position |
| PSP | Pierced Steel Planks |
| PSR | Point of Safe Return |
| PST | Pacific Standard Time |
| PT | Point |
| PTN / PT | Procedure Turn |
| PTO | Please Turn Over |
| PTO | Part Time Operation |
| PTS | Polar Track Structure |
| PTS | Predetermined Track Structure |
| PVT | Private Operator |
| PWR | Power |
