Walter Isaacson (born May 20, 1952) is an American businessman and journalist. In 2001 he became Chairman and Chief Executive Officer (CEO) of CNN. In 2003 he became the President and CEO of the Aspen Institute. He also has been the editor of Time Magazine.

Isaacson has written biographies of Benjamin Franklin, Albert Einstein, Steve Jobs and Henry Kissinger. He also co-authored the book The Wise Men: Six Friends and the World They Made. In 2012 Time Magazine named him one of the top 100 most influential people in the world.