John Wallace (c. 1842 – November 25, 1908) was a teacher, lawyer, political leader and judge in Florida. Wallace served in the Union Army after being freed by federal soldiers during the American Civil War. He served in the Florida Legislature during the Reconstruction era. He also became a lawyer and argued cases before the Florida Supreme Court. He putatively wrote "Carpetbag Rule in Florida: The Inside Workings of Civil Government in Florida After the Close of the Civil War". At the time of his death, he had held public office longer than any other African-American elected official.