The Loud Park Festival (ラウドパーク, Raudo Pāku) was a heavy metal festival held annually at Saitama Super Arena in Saitama City or Makuhari Messe in Chiba City, Japan. It was one of the biggest heavy metal festivals in Japan. The festival has featured both Japanese and international performers such as DragonForce, Judas Priest, Megadeth, Slayer, Circus Maximus, Napalm Death, Angra, Loudness, Anthem, United, Outrage, Galneryus, Dir En Grey and Babymetal.