Harry Fleishman is a luthier who has been building custom guitars since 1969. In his Sebastopol, California shop he builds about a dozen guitars and acoustic basses each year, plus innovative electric basses. He also teaches guitar design and building in small class settings at his school, Luthiers School International. Harry is the former director of the American School of Lutherie, in Healdsburg, Ca. Harry writes often about guitar-related topics for Acoustic Guitar, and American Lutherie, among others. In addition to designing guitars for other companies, most notably Fender Musical Instruments Corporation, he designs tools for the lutherie community. As an active member of the Guild of American Luthiers, Harry has lectured on acoustic guitar amplification and chaired a panel on unconventional acoustic guitar design. He continues his research and experiments in asymmetric design, multi-soundport and multi-tonewood instruments, as well as Electric Upright Basses and ultra-light electric guitars and basses.

In the late 1960s, Harry was a member of the band, the Mugwumps, and had a minor hit record of John Sebastian's "Jug Band Music." He later worked as a songwriter for Criterion Music Company, Inc. After an altercation with producer Don Droughty, Harry was fired and replaced by Jackson Browne.