SPF
- Black Hills Airport
- ECB Survey of Professional Forecasters
- Formal spectrum of a ring
- S-phase-promoting factor
- Scottish Police Federation
- Security Policy Framework
- Sender Policy Framework
- Servicio Penitenciario Federal
- Sherwood Park Freeway
- Shortest Path First
- Singapore Police Force
- Single point of failure
- Social protection floor
- Socialist Party of Florida
- Société des poètes français
- Somali Police Force
- Space Power Facility
- Special Police Force
- Specific-pathogen-free
- Spot 42 RNA
- Springfield railway station (Scotland)
- Spruce-pine-fir
- Summer Play Festival
- Sun protection factor
- Superplastic forming
- Survey of Professional Forecasters
- Synomosía Pyrínon tis Fotiás