English abbreviations from psf to psi
- PSF (Pittsfield Municipal Airport)
- PSFI (Pilipinas Shell Foundation, Inc.)
- PSFIS (Phoenix Supply Financial Interface System)
- PSFREP (Post-Summer Faculty Research and Engineering Program)
- PSG (Pharmaceutical Society of Ghana)
- PSGV (Penn State Great Valley)
- PSH (Programmable Switching Hewlett-Packard power supply)
- PSHA (Preliminary Safety Hazard Analysis)
- PSHCE (Personal, Social, Health, and Citizenship Education)
- PSHDGRU (Port Security and Harbor Defense Group)
- PSHE (Personal and Social Health Education)
- PSHRS (Penn State Hotel & Restaurant Society)
- PSHS (Philippine Science High School)
- PSHT (Persaudaraan Setia Hati Terate)
- PSI (Presidential's Special Initiatives)