Ronnie Lee Cunningham (August 15, 1952 – 4 May 2020) was an American musician, best known as a member of the 1970s rock band LAW. Cunningham's first notable engagement was as the band leader of his own group called The Ronnie Lee Thing, although before that he had already recorded his first single at the age of 14. In 1969 he co-founded Brainchild, where he played until the group disbanded 1972. Cunningham was friends with a founding member of LAW, , and through this connection joined LAW in 1973. He replaced Mickey Williamson at the keyboards, and also sang lead on many of their recordings.