KIOZ (105.3 FM, "Rock 105.3") is a commercial radio station that is licensed to San Diego, California.

In March 1958, the newly renamed KITT, a beautiful music-formatted station, began broadcasting on 105.3 MHz.

Owner Compass Media proceeded to rehire former program director Rich Brother Robbin, who adjusted the format to "modern oldies".

Meanwhile, KCBQ's call sign was dropped in favor of a new identity: KXST, for "Sets FM", with an adult album alternative (AAA) format.

[2][3] In October 1996, just one year after purchasing KIOZ, Par Broadcasting sold its four-station San Diego cluster to Jacor Communications for $72 million, part of a complex four-way swap of stations throughout California.

KIOZ aired the syndicated program The Howard Stern Show weekday mornings after it was pulled from Mexican radio station XETRA-FM.

[5] KIOZ was the flagship station of the San Diego Chargers football team from 2005 until their relocation after the 2016 NFL season.