Lefty Dizz (April 29, 1937 – September 7, 1993) was an American Chicago blues guitarist and singer whose recorded work appeared on eight albums.He is best known for fronting his own band, Shock Treatment, and his work with Junior Wells, J. B. Lenoir and Hound Dog Taylor. One commentator noted that "for wild-ass showmen in blues history ... one would certainly have to go a far piece to beat Lefty Dizz".