KSJ

KSJ or ksj may refer to:


 * Kasganj Junction railway station (Station code: KSJ), a railway station in Uttar Pradesh, India
 * Kasos Island Public Airport (IATA: KSJ), an airport in Kasos, Greece
 * Knight Science Journalism, an American journalism award
 * Kwale language (ISO 639-3: ksj), a language of Papua New Guinea