Kenneth Hartley Blanchard (born May 6, 1939) is an American author, business consultant and motivational speaker who has written more than 70 books, most of which were co-authored. His most successful book, The One Minute Manager, has sold more than 15 million copies and been translated into many languages. He is the co-creator with Dr. Paul Hersey of Situational Leadership, a theory they developed while working on the textbook Management of Organizational Behavior.
Blanchard is the Chief Spiritual Officer of Blanchard, an international management training and consulting firm that he and his wife, Marjorie Blanchard, co-founded in 1979 in San Diego, California.
