4WK is an Australian commercial radio station located in Toowoomba, Queensland. The station was first established in Warwick, Queensland in 1935, hence the callsign used for the station. 4WK currently broadcasts in the Toowoomba region on four separate frequencies. The station is heard on 95.5 FM in Toowoomba while the greater Darling Downs can receive the station on 963 AM. 4WK is also broadcast on 95.9 FM in Dalby and 91.5 FM in Stanthorpe. On 14 July 2018 at 2130hrs, 4WK 963 kHz Allora commenced C-QUAM AM stereo transmission to complement its FM stereo translators.