KASK (91.5 FM) is a non-commercial American radio station broadcasting a Christian talk and teaching format, licensed by the Federal Communications Commission (FCC) to serve the community of Fairfield, California. As of January 2009, KASK is owned by Continuous Bible Talk.^[1]

The station was first licensed to begin broadcasting as KASZ on February 7, 1997. On May 23, 1997, the station changed its call sign to the current KASK.^[2]

KASK was formerly owned and operated by The Doug Matthews Group in Las Cruces, New Mexico and ceased broadcasting in the early 1990s after a venture into independent television (KASK-TV) failed and forced the company into bankruptcy. The station's format during the 1970s and 1980s was Adult Contemporary and used a reel-to-reel automation system with live assist cutaways for news, weather, and sports. The station's frequency was 103.1 FM.