John "Memphis Slim" Chatman (born September 3, 1915, Memphis, Tennessee; died February 24, 1988, in Paris, France) was a blues pianist, singer, and composer.

Memphis Slim (3 September, 1915 in Memphis, Tennessee – 24 February, 1988 in Paris, France ) was a blues pianist and singer. His birth name was John Len Chatman although he himself claimed to be born Peter Chatman (the name he gave himself in honour of his father Peter Chatman Sr. when he first recorded for Okeh in 1940). He composed the blues standards “Every Day I Have the Blues” and “Mother Earth”. Memphis Slim got his start playing the blues at the Midway Café, at 357 Beale Street