CFOX-FM is a Canadian radio station broadcasting at 99.3 MHz in Vancouver, British Columbia. It is owned by Corus Entertainment and broadcasts a mainstream rock format branded as "99.3 The Fox".
The station first signed on the air on October 1, 1979, as a sister station to CKNW. Originally, it broadcast a soft rock format. By the mid-1980s, CFOX shifted towards a harder-edged album-oriented rock (AOR) format. The station has maintained a rock format, with adjustments over the years to reflect evolving tastes, and has consistently ranked among Vancouver's top radio stations.
CFOX-FM's studios are located in downtown Vancouver, and its transmitter is located on Mount Seymour. The station is known for its on-air personalities, rock music library, and community involvement. It also features a variety of specialty programming, including themed music shows and broadcasts of Vancouver Canucks hockey games, although it lost the broadcast rights to Sportsnet 650 in 2017.