WSJT

WSJT may refer to:


 * WSJT-LD, a low-power television station (channel 10, virtual 15) licensed to serve Atlantic City, New Jersey, United States
 * the previous callsign of radio station WPBB
 * a former callsign of television station WUVP-DT
 * WSJT (amateur radio software), a computer program used for weak-signal radio communication between amateur radio operators