Winfield Scott Moore III was an American guitarist who formed The Blue Moon Boys in 1954, Elvis Presley's backing band. He was studio and touring guitarist for Presley between 1954 and 1968.

The Blue Moon Boys were an American rock and roll band that was formed by Elvis Presley, lead guitarist Scotty Moore and double bass player Bill Black. The group members were introduced by Sun Studio owner Sam Phillips in 1954, except for drummer D.J. Fontana, who joined the group during a Louisiana Hayride tour in 1955. The Blue Moon Boys were inducted into the Musicians Hall of Fame and Museum in 2007. The band was named after Bill Monroe's song "Blue Moon of Kentucky".