Robert Norman "Rob" Buck (August 1, 1958 – December 19, 2000) was a founding member and guitarist of the American alternative rock band 10,000 Maniacs from 1981 until his death from liver disease in 2000. Some of his compositions with Natalie Merchant are among the most popular songs recorded by 10,000 Maniacs, including "What's the Matter Here", "Hey Jack Kerouac", "You Happy Puppet" and "These Are Days".