| PTT | Pacific Telephone & Telegraph Company 
| Others |
| PTT | Pacific Top Team
| Others |
| PTT | Pacific Track Time
| Others |
| PTT | Parent Teacher Team
| Others |
| PTT | Part Task Trainer
| Others |
| PTT | Partial Thromboplastin Time
| Others |
| PTT | Passing The Time
| Others |
| PTT | Perfect Tactical Trainer
| Others |
| PTT | Permission To Talk to ....
| Others |
| PTT | Persistence Tenacity and Toughness
| Others |
| PTT | Personal Training Tactics
| Others |
| PTT | Perth Theatre Trust
| Others |
| PTT | Peso Totale Trasportabile
| Others |
| PTT | Philippine Telegraph and Telephone Company
| Others |
| PTT | Physical Therapy Today
| Others |
| PTT | Pizza Time Theatre
| Others |
| PTT | Plate Tectonic Tools
| Others |
| PTT | Platform Transmitter Terminal
| Others |
| PTT | Platform Transmitting Terminal
| Others |
| PTT | Platform Trust Technology
| Others |
| PTT | Polytrimethylene Terephthalate
| Others |
| PTT | Post Telefoon Telegraaf
| Others |
| PTT | Post Telegraph and Telephone
| Others |
| PTT | Post Telephone and Telegraph
| Others |
| PTT | Post, Telephone, and Telegraph
| Others |
| PTT | Posta Telefon Telgiraf
| Others |
| PTT | Postal Telegraph and Telephone
| Others |
| PTT | Postal Telephone and Telegraph
| Others |
| PTT | Posts Telegraphs and Telephones
| Others |
| PTT | Premium Tech Tool
| Others |
| PTT | Prenegotiated Target Time
| Others |
| PTT | Presentations That Talk
| Others |
| PTT | Press To Transmit
| Others |
| PTT | Preston Thomas Tucker
| Others |
| PTT | Price To Trade
| Others |
| PTT | Primary Teacher Training
| Others |
| PTT | Proactive Technical Training
| Others |
| PTT | Productivity Task Tracking
| Others |
| PTT | Professional Teaching Time
| Others |
| PTT | Professional Technology Temple
| Others |
| PTT | Professional Theatrical Technicians
| Others |
| PTT | Protocol Task Team
| Others |
| PTT | Pt Cruiser Touring
| Others |
| PTT | Public Telephone Telegraph
| Others |
| PTT | Pull The Trigger
| Others |
| PTT | Push To Talk
| Others |
| PTT | push to talk In this
| Others |
| PTT | Push to Talk Technology
| Others |
| PTT | push to talk Then
| Others |
| PTT | Push-to-talk
| Others |
| PTT | The Test
| Others |