| Acronym | Definition |
|---|
| PTTC➣Petroleum Technology Transfer Council |
| PTTC➣Philippine Trade Training Center (est. 1987) |
| PTTC➣Public Transport Ticketing Corporation (Sydney, New South Wales, Australia) |
| PTTC➣Perak Techno Trade Centre (Ipoh, Perak, Malaysia) |
| PTTC➣Preaching to the Choir |
| PTTC➣Paper Tape Transmission Code |