| Abbreviation | Definition |
|---|---|
| PTC | Pineville Telephone Company |
| PTC | Pittsburgh Technology Council |
| PTC | Pittsburgh Typewriter Calculator |
| PTC | Posts and Telecommunications Corporation |
| PTC | Private Transportation Company |
| PTC | Private Trust Company |
| PTCI | Pioneer Telephone Cooperative Inc |
| PTCL | Pakistan Telecom Company Limited |
| PTCL | Pakistan Telecommunication Company Limited |
| PTCL | Pakistan Telecommunication Company Ltd |
| PTCL | Pakistan Telecommunications Company Limited |
| PTCL | Pakistan Tobacco Company, Limited |
| PTCL | Poh Tiong Choon Logistics |
| PTCS | Pallavan Transport Consultancy Services, Limited |
| PTD | PenTeleData |
| PTD | Power Transmission and Distribution |
| PTD | Provo Turtle Divers |
| PTDC | Pakistan Tourism Development Corp |
| PTDC | Pakistan Tourism Development Corporation |
| PTDC | Pakistan Tourism Develpment Corporation |