The Louvin Brothers were an American musical duo composed of brothers Ira and Charlie Louvin. The brothers are cousins to John D. Loudermilk, a Nashville Songwriters Hall of Fame member.

Charles Elzer Loudermilk, known professionally as Charlie Louvin, was an American country music singer and songwriter. He is best known as one of the Louvin Brothers, and was a member of the Grand Ole Opry since 1955.