PRJ

PRJ may refer to:


 * Jakarta Fair (Pekan Raya Jakarta), an annual event in Indonesia
 * Patti Rutland Jazz, a dance company in Alabama, United States
 * Prantij railway station (station code PRJ), Gujarat, India
 * Pronair (ICAO: PRJ), a former airline based in Spain
 * .prj, a file extension for the project description in a shapefile