KSFB (1260 AM) is a radio station licensed to San Francisco, California. It broadcasts Relevant Radio, a Roman Catholic radio format, to the San Francisco Bay Area of the United States. It was previously known as KYA (AM) until 1983, and KOIT (AM) and KXLR after that. The AM station was a simulcast of the former sister station KOIT-FM, and unlike that station, continued to be owned by Bonneville International until February 1, 2008, when it was officially sold to IHR Educational Broadcasting.