John Kramer

• John Kramer , 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, American tennis player
• John R. Kramer, former Tulane University Law School dean
• John H. Kramer, emeritus professor at Pennsylvania State University
• John Krämer, German writer
• John Kramer