Mayhem Festival 2012 was the fifth annual Mayhem Festival. Dates were announced on October 26, 2011.^[1]

Mayhem Festival 2012 lineup

Main stage

• Slipknot
• Slayer
• Motörhead
• Rotating band slot

Rotating bands

Bands rotated between opening main stage and supporting Anthrax on Jägermeister stage

• The Devil Wears Prada (June 30 – July 11)
• As I Lay Dying (July 13 – July 24)
• Asking Alexandria (July 25 – August 5)

Jägermeister stage

• Anthrax
• Rotating band slot
• Rotating band slot
• Whitechapel
• Upon A Burning Body (June 30 – July 11)
• Betraying the Martyrs (July 13 – July 24)
• I the Breather (July 25 – August 5)
• Silvertung (August 5)
• Jägermeister Battle of the Bands Winner

Sumerian Records stage

• Upon A Burning Body (July 13 – August 5)
• I the Breather (June 30 – July 24)
• Betraying the Martyrs (June 30 – July 11) (July 25 – August 5)
• Dirtfedd
• Sumerian Stage local Headbang for the Highway Battle of the Bands Winner (Thrown Into Exile – 6/30),^[2] (Karin Comes Killing – 7/4) (Depths of Mariana – 7/29), (Spiral Fracture – 7/29), (Eyes of Torment - 7/14)

Dates