Walter Joseph Zable (June 17, 1915 – June 23, 2012) was an American businessman, entrepreneur, semi-professional football player and standout college athlete. He was the founder, chairman and chief executive officer (CEO) of Cubic Corporation, a public corporation providing military defense equipment and automated fare collection equipment. At the time of Zable's death, he was the world's oldest public company CEO and Cubic was worth 1.28 billion dollars.