SPF

SPF may refer to:

Science and technology

 * Sun protection factor, of sunscreen
 * Specific-pathogen-free, laboratory animals known to be without pathogens
 * Superplastic forming, of sheet metal
 * Space Power Facility, a NASA test facility
 * S-phase-promoting factor, in biology
 * Formal spectrum of a ring, a construction in algebraic geometry
 * Spray polyurethane foam, a building insulation material
 * Spruce-pine-fir, mixed softwood timber
 * Spot 42 RNA, a small regulatory RNA found in some Gammaproteobacteria

Computing

 * Sender Policy Framework, for email authentication
 * Shortest Path First, or Dijkstra's algorithm
 * IBM Structured Programming Facility, later ISPF

Organizations

 * Société des poètes français, the oldest poetry society in France
 * Servicio Penitenciario Federal, the Argentine Federal Penitentiary Service
 * Synomosía Pyrínon tis Fotiás (Conspiracy of Fire Nuclei), Greek terrorist organization

Police

 * Scottish Police Federation
 * Singapore Police Force
 * Somali Police Force
 * Special Police Force, a unit within a police force

Economics

 * Survey of Professional Forecasters, US macroeconomic forecasts survey
 * ECB Survey of Professional Forecasters, macroeconomic forecasts

Other uses

 * Security Policy Framework, UK
 * Social protection floor
 * Annual Summer Play Festival, New York City, US
 * Black Hills Airport (IATA airport code), South Dakota, US
 * Sherwood Park Freeway, Edmonton, Alberta, Canada
 * Springfield railway station (Scotland), station code