John Henry Patterson

John Henry Patterson may refer to:

• John Henry Patterson (author) (1867–1947), Anglo-Irish soldier who wrote The Man-Eaters of Tsavo which was made into the film The Ghost and the Darkness in 1996
• John Henry Patterson (NCR owner) (1844–1922), founder and first owner of the National Cash Register Company
• John Henry Patterson (Medal of Honor) (1843–1920), Union soldier during the American Civil War and recipient of the Medal of Honor