John Kramer

John Kramer may refer to:


 * John Kramer (darts player) (born 1956), retired American professional darts player
 * John Kramer, better known as Jigsaw, fictional character in the Saw franchise
 * John Kramer, bassist with the Arthur Lyman Group
 * Jack Kramer (John Albert Kramer, 1921–2009), American tennis player
 * John R. Kramer (1937–2006), former Tulane University Law School dean
 * John H. Kramer, emeritus professor at Pennsylvania State University
 * John Krämer, German writer
 * John Kramer (footballer)