David Cyril Eric Swarbrick (5 April 1941 – 3 June 2016) was an English folk musician and singer-songwriter. His style has been copied or developed by almost every British and many world folk violin players who have followed him. 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.