Alonzo “Lonnie” Johnson (February 8, 1899 – June 16, 1970) was an American blues and jazz singer, guitarist, violinist and songwriter. He was a pioneer of jazz guitar and jazz violin and is recognized as the first to play an electrically amplified violin.

Johnson was born in New Orleans, Louisiana, and raised in a family of musicians. He studied violin, piano and guitar as a child and learned to play various other instruments, including the mandolin, but he concentrated on the guitar throughout his professional career. “There was music all around us,” he recalled, “and in my family you’d better play something, even if you just banged on a tin can.