John Lowell Burton (born December 15, 1932) is an American politician. He was Chairman of the California Democratic Party from April 2009 until May 2017. He was in the California State Assembly (1965–74), in the U.S. House of Representatives (1974–83), in the State Assembly again (1988–96), and in the California State Senate (1996-2004) (representing the 3rd district).