KZSF (1370 AM) is a radio station broadcasting a Regional Mexican format in the San Francisco Bay Area. Licensed to San Jose, California, USA. The station is currently owned by Carlos A. Duharte.
KZSF came on the air in 1947 as KEEN. The station was assigned the KKSJ call letters on October 11, 1993. On January 20, 1998, the station changed its call sign to the current KZSF.