John Allison is a prominent American businessman and author, best known for his role as the former CEO of BB&T Corporation, a large financial services company. He led the company from 1989 until his retirement in 2010, during which he significantly expanded its operations and influence in the banking industry. In addition to his business achievements, Allison is recognized for his advocacy of Ayn Rand's philosophy of Objectivism. He has written several books on leadership and business ethics, emphasizing the importance of individualism and free markets in fostering economic growth and personal success.