| APT | Automatic Picture Transmission | - | Atmospheric Research Center |
| APT | Automatic Photoelectric Telescope | - | Atmospheric Research Center |
| APT | Accelerator Production Of Tritium | - | Computer Acronyms(common) |
| APT | Analytic Perturbation Theory | - | Computer Acronyms(common) |
| APT | Atomic Polar Tensor (in Ir Spectra Calcn.) | - | Computer Acronyms(common) |
| APT | Attached Proton Test | - | Computer Acronyms(common) |
| APT | Automatic Picture Transmission | - | Business and Finance |
| APT | Alliance For Photonic Technology | - | Business and Finance |
| APT | Accelerator Production Of Tritium | - | Business and Finance |
