Jack Grisham (born 1961) is an American rock musician, raconteur and political activist. He is the vocalist for the punk band T.S.O.L. (True Sounds of Liberty), which emerged from the 1980s Los Angeles punk rock scene, along with Black Flag, Circle Jerks and Social Distortion. Grisham has also fronted the bands The Joykiller, Tender Fury and Cathedral of Tears. He currently records with T.S.O.L. and the Manic Low.