John Cipollina (August 24, 1943 – May 29, 1989) was a guitarist best known for his role as a founder and the lead guitarist of the prominent San Francisco rock band Quicksilver Messenger Service.
After leaving Quicksilver he formed the band Copperhead, was a member of the San Francisco All Stars and later played with numerous other bands, including Janis Joplin on the Dick Cavett show.