Peter Stampfel is an American fiddle player, old-time musician, and singer-songwriter. He is best known as a founding member of The Holy Modal Rounders, which he formed with guitarist Steve Weber in 1963 in New York City. The Rounders' early recordings are cited as among the first examples of psychedelic folk and freak folk. Music critic Robert Christgau declared that "next to Bob Dylan, Stampfel is the closest thing to a genius" to emerge from the New York folk revival of the 1960s.