Michael D. Sullivan (December 2, 1938 – February 27, 2000) was a justice of the Supreme Court of Mississippi from 1984 until his death in 2000. Sullivan was appointed by Mississippi governor Bill Allain in 1984 and reelected. From 1975 until his Supreme Court appointment he was a chancery court judge. Sullivan was serving as a chancery judge for the tenth district of Mississippi when he was named to the state supreme court on February 16, 1984. Sullivan died from lung cancer at his home in Jackson, Mississippi, at the age of 61.