William C. Hancock Jr. (November 4, 1946 – January 22, 2018) was an American singer, guitarist, bassist and multi-instrumental recording artist. He has made numerous recordings, primarily in the rockabilly genre but also has a large body of recorded work in rock 'n' roll, blues, jazz, rhythm & blues, and country music. He performed live primarily in the Washington, D.C., area, but also played regularly at European roots music festivals.