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.
Kask is an Estonian surname meaning " birch". Notable people with the surname include:
- Janne Kask, former singer of the Swedish band Brainpool
- Jana Kask (born 1991), Estonian singer and the winner of Eesti otsib superstaari (Estonian version of Pop Idol) 2008
- Oskar Kask (1898–1942), Estonian politician
- Teet Kask (born 1968), Estonian ballet dancer and choreographer