William Christopher Smither (born November 11, 1944) is an American folk/blues singer, guitarist, and songwriter. His music draws deeply from the blues, American folk music, and modern poets and philosophers.
He was born in Miami, Florida, United States to Catherine (nee Weaver) and William J. Smither. Although Smither does not himself credit family influence for his talents, uncle Howard E. Smither was an award-winning musicologist and author, and father William was a professor of Spanish and Mexican culture.