| Acronym | Definition |
|---|
| PSF | Python Software Foundation |
| PSF | Point Spread Function (optics) |
| PSF | Point Spread Function |
| PSF | Per Square Foot |
| PSF | Print Services Facility |
| PSF | Pounds per Square Foot |
| PSF | Point Spread Functions |
| PSF | Professional Service Firm |
| PSF | Pharmaciens Sans Frontieres |
| PSF | Permanent School Fund |
| PsF | Polysulfone (polymer) |
| PSF | Postscript Fonts (Adobe) |
| PSF | Polyester Staple Fiber (textiles) |
| PSF | pound per square foot |
| PSF | Power Steering Fluid |
| PSF | Pakistan Science Foundation |
| PSF | Passenger Service Fee (India) |
| PsF | Progressive Segmented Frame (video) |
| PSF | Private Sector Foundation (Uganda) |
| PSF | Playstation Sound Format (file extension) |
| PSF | Posterior Spinal Fusion |
| PSF | Presbyterian Student Fellowship |
| PSF | Pittsfield, Massachusetts |
| PSF | Performance Shaping Factor (nuclear power) |
| PSF | Peoples Students Federation (Pakistan) |
| PSF | Poisson Summation Formula |
| PSF | Presidio of San Francisco |
| PSF | Partnership for Strong Families |
| PSF | Priority Solidarity Fund |
| PSF | Projet San Francisco |
| PSF | Proteus Syndrome Foundation |
| PSF | Public Safety Factor (federal prison inmate security score) |
| PSF | Pressure Sand Filter |
| PSF | Program Support Facility |
| PSF | Peace Support Force |
| PSF | Phelps-Stokes Fund (Washington, DC) |
| PSF | Power Systems Facility (LERC Facility) |
| PSF | Pusan Storage Facility |
| PSF | Pukhtun Students Federation |
| PSF | Pseudo-Skeptic-Fanatic |
| PSF | Planetary Super Freighter (gaming) |
| PSF | Photonic Switch Fabric |
| PSF | Practicing Spoken French |
| PSF | Pendejos Sin Fronteras (foreign supporters of Hugo Chavez) |
| PSF | Printing Support Facility |
| PSF | Pilot Symbol Filter |
| PSF | Procurement Status File |
| PSF | Pressure Single Filer |
| PSF | Probabilistic Spectrum Fitting |
| PSF | Pay Service File |
| PSF | Product Service Facility |
| PSF | Philippine Special Force (video gaming group) |
| PSF | Pencak Silat of France |
| PSF | Personal Security File (Australia) |
| PSF | Perennialized Stream Flow |