John Petersen

• John Petersen (footballer), Faroese footballer
• John Petersen (politician), Faroese politician in Cabinet of [Anfinn Kallsberg I]
• John Petersen (musician), American drummer
• John C. Petersen, Wisconsin legislator
• John D. Petersen, former president of the University of Tennessee system
• Johnny Petersen, Danish football manager
• John "Chap" Petersen, Virginia politician