Vassar Carlton Clements (April 25, 1928 – August 16, 2005) was an American jazz, swing, and bluegrass fiddler. Clements has been dubbed the Father of Hillbilly Jazz, an improvisational style that blends and borrows from swing, hot jazz, and bluegrass along with roots also in country and other musical traditions. He was posthumously inducted into the International Bluegrass Music Hall of Fame in 2018. Renowned for his contribution as a member of the band Old And In The Way.