SPJ is the US Society of Professional Journalists SPJ may also refer to: Transportation Air Service (airline) (former ICAO code SPJ); See List of airline codes (A) Samastipur Junction railway station (station code SPJ), India Sparti Air Base (IATA code SPJ), Greece Other uses Simon Peyton Jones, British computer scientist Self-protective jamming, or SPJ, in radar jamming and deception Special Program in Journalism, or SPJ, in Philippine secondary schools; See Technology and Livelihood Education Sunrise Party of Japan, or SPJ, a former political party