| Acronym | Definition |
|---|
| PFIS➣Prime Focus Imaging Spectrograph (now Robert Stobie Spectrograph) |
| PFIS➣Philosophical Foundations of Information Systems |
| PFIS➣Passenger Flight Information System |
| PFIS➣Poverty Focused Investment Strategy (Pakistan) |
| PFIS➣Plant Floor Information System |
| PFIS➣Polanoid Front for Instant Satisfaction |