John Willis Hurst (October 21, 1920 – October 1, 2011) was an American physician who served as the cardiologist of former U.S. President Lyndon B. Johnson. He was the editor of Hurst's the Heart, one of the most widely used medical textbooks in the world. He also served as a former president of the American Heart Association. Throughout his career, Hurst was recognized as a leader in cardiology.