| Acronym | Definition |
|---|
| PTCL➣Pakistan Telecommunication Company Limited |
| PTCL➣Peripheral T Cell Lymphoma |
| PTCL➣Pakistan Telecommunications Company Ltd. |
| PTCL➣Physical and Theoretical Chemistry Laboratory |
| PTCL➣Pakistan Tobacco Company Limited |
| PTCL➣Poh Tiong Choon Logistics Ltd. (Singapore; logistics specialists) |