David Cyril Eric Swarbrick (5 April 1941 – 3 June 2016) was an English traditional folk musician and songwriter who primarily played the violin. He was one of the most highly regarded musicians produced by the second British folk revival, contributing to some of the most important groups and projects of the 1960s, and he became a much sought-after session musician, which led him throughout his career to work with many of the major figures in folk and folk rock music.
A member of Fairport Convention from 1969, he assisted on their influential album Liege & Lief (1969) which is credited with initiating the British folk rock movement.