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.

[1] 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.

[4] Blanchard attended New Rochelle High School, and graduated in 1957.

[5] He completed a BA degree in government and philosophy at Cornell University in 1961, an MA degree in sociology and counseling at Colgate University in 1963 and a PhD degree in education administration and leadership at Cornell University in 1967.