KFRC was a radio station in San Francisco, California, United States, which made its first broadcast on Wednesday, September 24, 1924, from studios in the Hotel Whitcomb, at 1231 Market Street. KFRC originally broadcast with 50 watts on the 270 meter wavelength, then moved to 660 kHz in April 1927. As part of nationwide frequency reallocations on November 11, 1928, KFRC was moved to 610 kHz, where the call letters remained until 2005.

KFRC-FM is a commercial radio station in San Francisco, California, serving the San Francisco Bay Area. It currently simulcasts sister station KCBS, which carries an all-news format. The station transmits its signal from Mount Beacon atop the Marin Headlands above Sausalito, California, while studios were shared with formerly co-owned CBS O&O station KPIX-TV in downtown San Francisco.