| Abbreviation | Definition |
|---|---|
| PAS | Power Assisted Steering |
| PASM | Porsche Active Suspension Management |
| PASS | Pre-departure Authorized Special Status |
| PAT | Port Authority Transit |
| PAT | Power Angle And Tilt |
| PAT | Power Attitude Trim |
| PATH | Partners For Advanced Transit And Highways |
| PATH | People Attempting To Help |
| PATH | Port Authority Trans Hudson |
| PATH | Port Authority Trans-Hudson |
| PATH | Program for Advanced Transit and Highway |
| PATS | Passenger Assistant Training Scheme |
| PATS | Passive Anti-Theft System |
| PATS | Precision Automated Tracking System |
| PATWAS | Pilot's Automatic Telephone Weather Answering Service |
| PAV | Personal Activity Vehicle |
| PAX | Passenger |
| PB | Parking Brake |
| PB | Piggy Back |
| PBA | Provincetown Boston Airline |