Albums by year: 2006: Page 4
- Knever
- Koldbrann
- Kopecky
- Korn
- Korpiklaani
- Korum
- Krisiun
- Krokus
- Krux
- Labyrinth (POL)
- Lacuna Coil
- Lair of the Minotaur
- Lamb of God
- Leatherwolf
- Legion of the Damned
- Leprous
- Lethal (SWE)
- Lividity
- Liv Kristine
- Loch Vostok
- Loudness
- Lovex
- Luca Turilli's Dreamquest
- Lucifugum (UKR)
- Ludicra
- Lunar Aurora
- Lunatica
- Lycanthia
- Tony MacAlpine
- Madder Mortem
- Magika
- Mago de Oz
- Mahavatar
- Majesty (GER)
- Manigance
- Maninnya Blade
- Manitou (FIN)
- Manngard
- Manowar
- Manticora
- Marty Friedman
- Martyr (CAN)
- Mastodon
- Hubi Meisel
- Melechesh
- Memories Lab
- Mephistopheles
- Mercenary
- Merrimack
- Metal Church
- Meyvn
- Minas Morgul
- Mindflow
- Mind of the Dodecahedron
- Ministry
- Mirrorthrone
- miRthkon
- Misery
- Miss Behaviour
- Mońigo
- Moonspell
- Morbiddust
- Mortal Love
- Mortal Sin
- Mortification
- Scott Mosher
- Motörhead
- MurderWorld
- Mushroomhead
- Mutiny
- My Darkest Hate
- My Dying Bride
- My Sixth Shadow
- Mystic Circle
- Mystic Prophecy
- Mythyca
- Nachtmystium
- Napalm Death
- Narnia
- Neath
- Necrophagia
- Neglected Fields
- Negură Bunget
- Nehëmah
- Neon
- Neverborn
- Night's Plague
- Nightwish
- Nine
- Nitrous
- Noctuary (US - CA)
- Nominon
- No Return
- Norse
- Norther
- November Aria
- Novembre
- Nuclear Assault
- Obdurate Seduction
- Obscura
- Obsidian (NL)
- Octopus
- Odd Logic
- Odious Mortem
- Ohm
- One Man Army and the Undead Quartet
- Opened Paradise
- Open Hell
- Opera Magna
- The Ordher
- Ordo Templi Aeternae Lucis
- Ornias
- Oro
- Oroku Saki
-
Orthrelm
Paincave / Pithot 1 (Single) (w/ Behold... the Arctopus)
- O.S.I. (Office of Strategic Influence)
- Outworld
- Pagan Heritage
- Pain Confessor
- Paindivision
- PainMuseum
- Pantheon I
- Panzerchrist
- Panzer X
- Pathosray
- Paul Di'anno
- Axel Rudi Pell
- Persefone
- Persuader
- Pestilence
- Pest (SWE)
- Pharaoh
- Place of Skulls
- Planet Rain
- Plastilinovy JiNN
- Pretty Little Flower
- Poisonblack