| PTTP | Pacific Tuna Tagging Programme 
| Others |
| PTTP | Paint The Town Pink
| Others |
| PTTP | Paraprofessional Teacher Training Program
| Others |
| PTTP | Parent Trainer Training Programme
| Others |
| PTTP | Pathways Transition Training Partnership
| Others |
| PTTP | Patient Treatment Time Prediction
| Others |
| PTTP | Pharmacology And Toxicology Training Program
| Others |
| PTTP | Pinnacle Titan Technology Partners
| Others |
| PTTP | Pivotal Teachers Training Programme
| Others |
| PTTP | Post Termination Transition Period
| Others |
| PTTP | Post Treatment Tracking Project
| Others |
| PTTP | Post-Transfusion Thrombocytopenic Purpura
| Others |
| PTTP | Power To The Peaceful
| Others |
| PTTP | Power To The People
| Others |
| PTTP | Presbury Theatrical Training Program
| Others |
| PTTP | Present Tense Theater Project
| Others |
| PTTP | Process Technology Talent Program
| Others |
| PTTP | Professional Theatre Training Program
| Others |
| PTTP | Professional Theatre Training Program (University of Delaware)
| Others |
| PTTP | Profit Through Technology Products
| Others |
| PTTP | Prolog Technology Theorem Prover
| Others |