| O | 1 | 1 | 7.81 | |
| O Kee Pa | 1 | 1 | 7.78 | |
| O Pioneers!!! | 1 | 1 | 7.79 | |
| O' Shea, Mick | 1 | 1 | 7.77 | |
| Oak Pantheon | 1 | 1 | 7.81 | |
| Oakenshield | 2 | 9 | 7.85 | 3779 |
| Oakhelm | 2 | 3 | 7.78 | 5632 |
| Oath | 3 | 3 | 7.76 | |
| Oath Of Damnation | 1 | 1 | 7.80 | |
| Oath To Vanquish | 2 | 8 | 7.83 | 4431 |
| Oathbreaker | 1 | 2 | 7.90 | |
| Oathean | 2 | 9 | 7.13 | 9881 |
| Obake | 2 | 2 | 7.81 | |
| Obdurated | 1 | 1 | 7.78 | |
| Obeah | 1 | 3 | 7.65 | 7919 |
| Obelyskkh | 2 | 2 | 7.80 | |
| Oberon | 1 | 2 | 7.86 | |
| Obey | 3 | 5 | 7.63 | 8113 |
| Obiat | 1 | 2 | 7.85 | |
| Obituary | 14 | 59 | 8.33 | 325 |
| Obitus | 4 | 10 | 8.18 | 691 |
| Object | 1 | 1 | 7.76 | |
| Objekt 4 | 3 | 6 | 7.69 | |
| Obligatorisk Tortyr | 3 | 3 | 7.82 | |
| Oblige | 1 | 1 | 7.80 | |
| Oblique Rain | 1 | 5 | 7.92 | 2552 |
| Obliterate | 2 | 2 | 7.74 | |
| Obliteration | 4 | 13 | 7.97 | 1934 |
| Oblitterate | 1 | 1 | 7.79 | |
| Obliveon | 4 | 10 | 7.69 | |
| Oblivio | 1 | 2 | 7.78 | |
| Oblivion | 2 | 3 | 7.74 | 6491 |
| Oblivion999 | 1 | 1 | 7.74 | |
| Oblivious | 3 | 5 | 7.87 | 3406 |
| Oblivious Signal | 1 | 1 | 7.78 | |
| Oblomov | 2 | 10 | 8.05 | 1302 |
| Oblyvion | 1 | 1 | 7.80 | |
| Obnoxious | 2 | 3 | 7.85 | |
| Obolus | 2 | 2 | 7.77 | |
| Obrecht, Jas (editor) | 1 | 1 | 7.79 | |
| Obrero | 1 | 2 | 7.88 | |
| O'brother | 1 | 1 | 7.78 | |
| Obscene | 1 | 1 | 7.79 | |
| Obscene Entity | 1 | 1 | 7.80 | |
| Obscene Eulogy | 1 | 2 | 7.80 | |
| Obscene Gesture | 4 | 9 | 7.43 | 9360 |
| Obscene Productions | 1 | 1 | 7.79 | |
| Obscene, The | 1 | 1 | 7.78 | |
| Obscenity | 5 | 17 | 7.92 | 2610 |
| Obscura | 6 | 29 | 8.59 | 62 |
| Obscurant | 2 | 6 | 7.46 | 9253 |
| Obscure | 2 | 5 | 7.79 | 5320 |
| Obscure Anachronism | 2 | 2 | 7.79 | |
| Obscure Infinity | 3 | 5 | 7.72 | 6933 |
| Obscure Oracle | 1 | 1 | 7.76 | |
| Obscure Sphinx | 3 | 3 | 7.79 | |
| Obscure Vortex | 1 | 1 | 7.73 | |
| Obscurity | 7 | 17 | 7.65 | 7956 |
| Obscurus Advocam | 1 | 3 | 7.81 | 4874 |
| Obscyria | 1 | 1 | 7.79 | |
| Obsequiae | 3 | 9 | 8.20 | 631 |
| Observant | 1 | 1 | 7.78 | |
| Obsessã¶r | 1 | 1 | 7.80 | |
| Obsession | 3 | 8 | 8.00 | 1655 |
| Obsessör | 1 | 2 | 7.76 | |
| Obsidian | 5 | 17 | 7.87 | 3439 |
| Obsidian Butterfly | 2 | 2 | 7.75 | |
| Obsidian Chamber | 1 | 1 | 7.79 | |
| Obsidian Gate | 3 | 4 | 7.79 | 5413 |
| Obsidian Kingdom | 2 | 3 | 7.86 | |
| Obsidian Sea | 2 | 4 | 7.78 | 5513 |
| Obsidian Tongue | 2 | 5 | 7.76 | 6038 |
| Obsidian Tongue/infera Bruo | 1 | 1 | 7.79 | |
| Obskuria | 2 | 7 | 7.79 | 5234 |
| Obsolete Incarnation | 1 | 1 | 7.80 | |
| Obsydian | 1 | 2 | 7.86 | |
| Obszön Geschöpf | 2 | 4 | 7.56 | 8762 |
| Obtained Enslavement | 2 | 2 | 7.79 | |
| Obtest | 5 | 20 | 8.09 | 1049 |
| Obtruncation | 1 | 2 | 7.84 | |
| Obtuse | 2 | 2 | 7.80 | |
| Obtuse / Grindbashers | 1 | 1 | 7.79 | |
| Obzerv | 1 | 1 | 7.78 | |
| Obzidian | 1 | 1 | 7.74 | |
| Occidens | 1 | 1 | 7.79 | |
| Occult | 3 | 12 | 7.85 | 3918 |
| Occult 45 | 1 | 1 | 7.80 | |
| Occult Burial | 1 | 1 | 7.78 | |
| Occultation | 2 | 4 | 7.75 | 6443 |
| Occultist | 1 | 1 | 7.79 | |
| Occultum | 1 | 1 | 7.79 | |
| Occultus | 1 | 1 | 7.79 | |
| Ocd | 1 | 1 | 7.76 | |
| Ocean | 1 | 1 | 7.81 | |
| Ocean Architecture | 1 | 1 | 7.79 | |
| Ocean Chief | 3 | 10 | 7.84 | 4138 |
| Ocean Districts | 1 | 1 | 7.79 | |
| Ocean Mind | 1 | 1 | 7.79 | |
| Ocean Of Sadness | 1 | 1 | 7.76 | |
| Ocean Of Sorrow | 1 | 1 | 7.78 | |
| Oceana Company | 1 | 2 | 7.84 | |
| Oceano | 3 | 9 | 7.57 | 8680 |
| Oceans Ate Alaska | 1 | 1 | 7.78 | |
| Oceans Of Night | 3 | 6 | 7.79 | 5293 |
| Oceans Of Sadness | 5 | 18 | 8.00 | 1626 |
| Oceans Of Slumber | 2 | 4 | 7.74 | 6467 |
| Oceansize | 6 | 9 | 8.01 | 1571 |
| Oceanwake | 2 | 6 | 7.93 | 2483 |
| Ocellus | 1 | 1 | 7.80 | |
| Ocoai | 1 | 1 | 7.80 | |
| Ocrilim | 1 | 2 | 7.49 | |
| Octagon | 1 | 3 | 7.54 | 8873 |
| Octagone | 1 | 2 | 7.81 | |
| Octane Gypsy | 1 | 1 | 7.77 | |
| Octanic | 1 | 1 | 7.79 | |
| Octavia | 2 | 2 | 7.77 | |
| Octavia Sperati | 2 | 17 | 7.95 | 2213 |
| Octillian | 1 | 2 | 7.84 | |
| Octinomos | 2 | 3 | 7.68 | |
| October 31 | 7 | 14 | 8.04 | 1368 |
| October Falls | 6 | 26 | 8.17 | 737 |
| October File | 5 | 17 | 7.83 | 4392 |
| October Sky | 1 | 1 | 7.79 | |
| October Thorns | 2 | 2 | 7.84 | |
| October Tide | 5 | 23 | 8.11 | 956 |
| Odal | 2 | 3 | 7.76 | 6081 |
| Odd Dimension | 2 | 6 | 7.66 | 7803 |
| Odd Logic | 1 | 1 | 7.79 | |
| Oddhums | 1 | 1 | 7.80 | |
| Oddland | 2 | 7 | 7.99 | 1809 |
| Odd-Man-Out | 1 | 1 | 7.80 | |
| ODdS | 1 | 1 | 7.81 | |
| Oddsize | 1 | 1 | 7.79 | |
| Ode To Orpheus | 1 | 1 | 7.79 | |
| Odem | 2 | 3 | 7.70 | |
| Odem Arcarum | 1 | 4 | 8.04 | 1346 |
| Odes Of Ecstasy | 1 | 1 | 7.79 | |
| Odetosun | 1 | 1 | 7.80 | |
| Odin's Court | 4 | 6 | 7.61 | 8318 |
| Odio Su Tela | 1 | 1 | 7.72 | |
| Odio Vestri | 1 | 1 | 7.79 | |
| Odious | 1 | 1 | 7.79 | |
| Odious Mortem | 2 | 6 | 8.00 | 1622 |
| Odium | 6 | 9 | 7.33 | 9634 |
| Odium Immortalis | 1 | 2 | 7.78 | |
| Odradek Room | 1 | 2 | 7.86 | |
| Odraza | 1 | 3 | 7.93 | 2486 |
| Odroerir | 3 | 5 | 7.94 | 2327 |
| Od'Sahe | 1 | 1 | 7.76 | |
| Odyssea | 3 | 9 | 7.94 | 2276 |
| Odyssey | 5 | 9 | 7.78 | 5576 |
| Oerjgrinder | 3 | 3 | 7.76 | |
| Oestre | 3 | 3 | 7.76 | 6225 |
| Of Darkness | 1 | 1 | 7.79 | |
| Of Graves And Gods | 1 | 3 | 7.71 | 7108 |
| Of Human Bondage | 2 | 2 | 7.80 | |
| Of Infinity | 2 | 7 | 7.85 | 3877 |
| Of Legends | 1 | 3 | 7.68 | 7539 |
| Of Mice & Men | 1 | 1 | 7.77 | |
| Of Mice And Man | 1 | 1 | 7.79 | |
| Of Spire & Throne | 2 | 2 | 7.73 | |
| Of The Fallen | 1 | 1 | 7.80 | |
| Of The I | 1 | 1 | 7.79 | |
| Of The Son | 1 | 2 | 7.73 | |
| Of The Wand & The Moon | 1 | 1 | 7.76 | |
| Of The Wand Of The Moon | 1 | 1 | 7.79 | |
| Of Wrath And Ruin | 1 | 1 | 7.80 | |
| Ofdrykkja | 1 | 1 | 7.80 | |
| Ofermod | 2 | 5 | 7.76 | 6105 |
| Off The Charts | 1 | 1 | 7.80 | |
| Off The Hook | 1 | 1 | 7.80 | |
| Off With Their Heads | 1 | 1 | 7.80 | |
| Off! | 1 | 1 | 7.80 | |
| Offal | 1 | 1 | 7.80 | |
| Offending | 2 | 6 | 7.72 | 6932 |
| Offerblok | 1 | 1 | 7.79 | |
| Offertorium | 1 | 1 | 7.80 | |
| Office Of Strategic Influence | 1 | 1 | 7.81 | |
| Officium Triste | 9 | 29 | 8.40 | 216 |
| Officium Triste / Ophis | 1 | 1 | 7.81 | |
| Offroad | 2 | 4 | 7.70 | |
| OffTopic | 1 | 1 | 7.79 | |
| Offworld | 1 | 1 | 7.79 | |
| Ofghost | 4 | 5 | 7.75 | |
| Ofrykkja | 1 | 1 | 7.75 | |
| Og Tegnet | 1 | 1 | 7.77 | |
| Ogen | 1 | 2 | 7.83 | |
| Ogenix | 1 | 1 | 7.80 | |
| Ogmasun | 1 | 1 | 7.78 | |
| Ogotay | 2 | 2 | 7.77 | |
| Ogre | 5 | 9 | 7.94 | 2290 |
| Ohgr | 1 | 1 | 7.78 | |
| Ohhms | 2 | 2 | 7.78 | |
| Ohm | 3 | 3 | 7.77 | |
| Ohrenfeindt | 3 | 3 | 7.79 | 5270 |
| Oil | 1 | 2 | 7.78 | |
| Oimoen, Harald & Lew, Brian | 1 | 1 | 7.81 | |
| Oingo Boingo, A Tribute | 1 | 2 | 7.31 | |
| Ojeda, Eddie | 1 | 1 | 7.80 | |
| Ojm | 3 | 3 | 7.82 | |
| Ojo Rojo | 1 | 1 | 7.78 | |
| Okkultokrati | 4 | 7 | 7.83 | 4447 |
| Okta Logue | 1 | 1 | 7.78 | |
| Oktor | 2 | 2 | 7.78 | |
| Okular | 2 | 7 | 7.91 | 2695 |
| Okumoto, Ryo | 1 | 1 | 7.81 | |
| Olc Sinncir | 1 | 2 | 7.46 | |
| Olc Sinnsir | 1 | 5 | 7.72 | 6885 |
| Old | 1 | 11 | 7.70 | 7219 |
| Old Chapel | 1 | 1 | 7.80 | |
| Old Corpse Road | 3 | 6 | 7.86 | 3694 |
| Old Forest | 3 | 3 | 7.86 | 3711 |
| Old Funeral | 1 | 2 | 7.75 | |
| Old Head | 1 | 1 | 7.78 | |
| Old Man Gloom | 1 | 1 | 7.80 | |
| Old Man Lizard | 1 | 1 | 7.81 | |
| Old man's child | 9 | 43 | 8.06 | 1260 |
| Old Man's Will | 1 | 2 | 7.83 | |
| Old Mayor | 1 | 1 | 7.80 | |
| Old Ritual | 1 | 1 | 7.79 | |
| Old Season | 3 | 7 | 7.84 | 4039 |
| Old Silver Key | 2 | 7 | 7.59 | 8503 |
| Old Thunder | 1 | 1 | 7.80 | |
| Old Wainds | 4 | 10 | 7.82 | 4524 |
| Old Witch | 1 | 1 | 7.80 | |
| Olde | 1 | 2 | 7.72 | |
| Olde Growth | 1 | 1 | 7.79 | |
| Olde York | 1 | 2 | 7.79 | |
| Old-Hate | 1 | 1 | 7.78 | |
| Oleander | 1 | 1 | 7.79 | |
| Olemus | 1 | 1 | 7.78 | |
| Olen'k | 1 | 2 | 7.87 | |
| Olethria Rigma | 1 | 1 | 7.78 | |
| Olethrio Rigma | 3 | 8 | 7.08 | 9912 |
| Oliva | 1 | 4 | 7.99 | 1814 |
| Oliver Hartmann | 1 | 1 | 7.79 | |
| Oliver Magnum | 1 | 2 | 7.92 | |
| Oliver Weers | 2 | 6 | 7.91 | 2770 |
| Oliver/dawson Saxon | 2 | 4 | 7.71 | 7129 |
| Oliveri, Nick | 1 | 1 | 7.79 | |
| Ollila, Mappe | 1 | 1 | 7.82 | |
| Olliver, Greg & Orshoski, Wes (producers & Directors) | 1 | 1 | 7.77 | |
| Olmeg | 1 | 1 | 7.78 | |
| Olympia | 2 | 3 | 7.80 | 5058 |
| Olympos Mons | 2 | 14 | 7.95 | 2212 |
| Olympus Mons | 1 | 1 | 7.80 | |
| Om | 4 | 12 | 8.10 | 1006 |
| Omaïnen | 1 | 1 | 7.73 | |
| Omar Rodriguez Lopez | 2 | 3 | 7.81 | |
| Omb | 1 | 1 | 7.82 | |
| Omega | 1 | 1 | 7.78 | |
| Omega Centauri | 1 | 5 | 8.01 | 1606 |
| Omega Crom | 3 | 7 | 7.67 | 7683 |
| Omega Lithium | 2 | 3 | 7.81 | |
| Omega Massif | 1 | 1 | 7.80 | |
| Omega Reign | 1 | 1 | 7.78 | |
| Omega X | 2 | 3 | 7.60 | |
| Omega Xentauri | 1 | 1 | 7.76 | |
| Omegae Lithium | 1 | 1 | 7.78 | |
| Omegalord | 2 | 3 | 7.69 | |
| Omegea Lithium | 1 | 1 | 7.79 | |
| Omei | 1 | 1 | 7.79 | |
| Omen | 7 | 19 | 7.87 | 3496 |
| Omerta | 1 | 1 | 7.80 | |
| Omery Rising | 1 | 1 | 7.80 | |
| Ömheten | 1 | 1 | 7.81 | |
| Ominous | 3 | 5 | 7.82 | 4502 |
| Ominous Crucifix | 1 | 5 | 7.50 | 9061 |
| Ominous Dusk | 1 | 1 | 7.80 | |
| Omision | 1 | 3 | 7.73 | 6726 |
| Omission | 4 | 8 | 7.64 | 8029 |
| Omit | 1 | 3 | 7.74 | 6621 |
| Ommadon | 2 | 2 | 7.80 | |
| Ommatidia | 2 | 4 | 7.87 | 3401 |
| Omnia | 4 | 4 | 7.86 | |
| Omnifariam | 1 | 2 | 7.73 | |
| Omnihility | 3 | 3 | 7.76 | |
| Omnikage | 1 | 1 | 7.76 | |
| Omnium Gatherum | 11 | 55 | 8.21 | 593 |
| Omnivore | 1 | 2 | 7.69 | |
| Omnizide | 2 | 4 | 7.75 | 6437 |
| Omophagia | 1 | 1 | 7.80 | |
| Omsq | 1 | 1 | 7.79 | |
| On A Bridge Of Dust | 1 | 2 | 7.79 | |
| On A Pale Horse | 1 | 1 | 7.76 | |
| On A Warpath | 1 | 2 | 7.76 | |
| On Broken Wings | 2 | 8 | 6.95 | 9972 |
| On Fire | 1 | 2 | 7.75 | |
| On Pain Of Death | 1 | 1 | 7.81 | |
| On Paths of Torment | 1 | 2 | 7.87 | |
| On The Edge Of The Netherrealm | 1 | 3 | 7.71 | 7076 |
| On The Last Day | 1 | 4 | 7.50 | 9087 |
| On The Outside | 1 | 2 | 7.80 | |
| On The Rise | 2 | 3 | 7.84 | |
| On Thorns I Lay | 6 | 16 | 7.80 | 5087 |
| On Top | 2 | 5 | 7.43 | 9394 |
| On Trial | 2 | 2 | 7.78 | |
| Onanizer | 1 | 1 | 7.78 | |
| Once Dead | 1 | 1 | 7.79 | |
| Once For All | 1 | 2 | 7.75 | |
| Once Godlike | 1 | 1 | 7.77 | |
| Once Human | 2 | 2 | 7.80 | |
| Once Nothing | 1 | 2 | 7.75 | |
| Ondskapt | 3 | 9 | 8.00 | 1667 |
| One | 1 | 1 | 7.78 | |
| One Bullet Left | 2 | 4 | 7.81 | 4922 |
| One Dead Three Wounded | 2 | 4 | 7.78 | 5637 |
| One Ethic | 1 | 1 | 7.80 | |
| One Eye Shut | 1 | 4 | 7.81 | 4828 |
| One Hour Hell | 2 | 6 | 7.80 | 5119 |
| One I Cinema | 1 | 1 | 7.79 | |
| One Inch Giant | 1 | 1 | 7.80 | |
| One Last Shot | 1 | 2 | 7.77 | |
| One Machine | 3 | 4 | 7.76 | 6051 |
| One Man Army | 1 | 1 | 7.80 | |
| One Man Army And The Undead Quartet | 5 | 27 | 7.88 | 3222 |
| One Man Army And The Undead Quartett | 2 | 2 | 7.82 | |
| One Man Army&the Undead Quartet | 2 | 3 | 7.84 | |
| One Mans Trash | 1 | 1 | 7.78 | |
| One Master | 4 | 7 | 7.79 | 5397 |
| One Morning Left | 1 | 2 | 7.65 | |
| One On One | 2 | 3 | 7.80 | |
| One Out Of Hell | 1 | 1 | 7.78 | |
| One Step Beyond | 3 | 8 | 7.79 | 5235 |
| One Way Mirror | 2 | 9 | 7.93 | 2452 |
| One Without | 1 | 2 | 7.68 | |
| One Wonders | 1 | 1 | 7.81 | |
| One Year Delay | 1 | 1 | 7.78 | |
| One Year Later | 1 | 1 | 7.74 | |
| Oneirogen | 1 | 2 | 7.85 | |
| Onelegman | 1 | 2 | 7.77 | |
| Onesidezero | 1 | 1 | 7.79 | |
| Onesta | 1 | 1 | 7.78 | |
| Onheil | 4 | 15 | 7.91 | 2769 |
| Onicectomy | 1 | 1 | 7.78 | |
| Onion's Reign | 1 | 1 | 7.78 | |
| Oniricous | 1 | 1 | 7.80 | |
| Onirik | 2 | 2 | 7.81 | |
| Oniromantic | 1 | 1 | 7.77 | |
| Onirophagus | 2 | 5 | 7.79 | 5484 |
| Onkel Tom | 2 | 4 | 7.74 | 6633 |
| Onkel Tom Angelripper | 2 | 4 | 7.89 | 3031 |
| Onkt | 1 | 1 | 7.79 | |
| Only a Shadow Remains | 1 | 1 | 7.79 | |
| Only Attitude Counts | 1 | 1 | 7.78 | |
| Only Fate Remains | 1 | 1 | 7.79 | |
| Onmyo-za | 2 | 2 | 7.81 | |
| On-off | 2 | 3 | 7.76 | |
| Onsetcold | 1 | 2 | 7.79 | |
| Onslaught | 9 | 44 | 8.07 | 1185 |
| Ontfødt | 1 | 1 | 7.80 | |
| Onward | 5 | 20 | 8.13 | 860 |
| Ooh La La | 2 | 4 | 7.77 | 5970 |
| Oomph! | 6 | 10 | 7.69 | 7383 |
| Opaque Lucidity | 2 | 4 | 7.61 | 8320 |
| Open Access | 1 | 1 | 7.77 | |
| Open Denile | 1 | 1 | 7.79 | |
| Open Fire | 1 | 2 | 7.54 | |
| Open Grave | 1 | 1 | 7.82 | |
| Open Hand | 1 | 3 | 7.86 | 3611 |
| Open Surgery | 1 | 1 | 7.80 | |
| Open The Skies | 1 | 2 | 7.62 | |
| Opening Scenery | 1 | 1 | 7.75 | |
| Opera Diabolicus | 1 | 5 | 7.75 | 6450 |
| Opera Ix | 10 | 21 | 7.21 | 9812 |
| Opera Magna | 2 | 2 | 7.80 | |
| Opera Noire | 1 | 1 | 7.79 | |
| Opera Rock | 1 | 1 | 7.79 | |
| Operadyse | 1 | 1 | 7.79 | |
| Operatika | 2 | 10 | 8.08 | 1115 |
| Operation Counterstrike | 1 | 1 | 7.77 | |
| Operation Majority | 1 | 1 | 7.80 | |
| Operation Winter Mist | 1 | 4 | 8.00 | 1641 |
| Operation: Mindcrime | 2 | 4 | 7.57 | |
| Opeth | 19 | 144 | 8.92 | 1 |
| Ophelia | 1 | 1 | 7.81 | |
| Ophidian | 2 | 5 | 7.66 | 7817 |
| Ophidian Forest | 2 | 3 | 7.38 | 9536 |
| Ophidian I | 1 | 5 | 7.77 | 5869 |
| Ophiolatry | 2 | 5 | 7.89 | 3127 |
| Ophis | 3 | 9 | 8.30 | 385 |
| Ophiura | 1 | 1 | 7.79 | |
| Ophthalamia | 2 | 2 | 7.81 | |
| Ophydian | 1 | 2 | 7.77 | |
| Opiate | 1 | 2 | 7.81 | |
| Opiate For The Masses | 1 | 1 | 7.74 | |
| Opium Lord | 2 | 2 | 7.81 | |
| Opium War | 1 | 1 | 7.70 | |
| Opium Warlords | 4 | 8 | 7.40 | 9484 |
| Opposing Motion | 1 | 2 | 7.83 | |
| Opposite Sides | 1 | 1 | 7.74 | |
| Opposition Party | 1 | 7 | 7.53 | 8932 |
| Oppression | 3 | 6 | 8.07 | 1198 |
| Oppressive | 1 | 1 | 7.77 | |
| Oppressor | 2 | 2 | 7.81 | |
| Opprobium | 1 | 1 | 7.78 | |
| Opprobrium | 2 | 5 | 7.68 | 7512 |
| Oprich | 2 | 2 | 7.76 | |
| Oprich/Piarevaracien/Chur | 1 | 1 | 7.76 | |
| Opthalamia | 1 | 1 | 7.80 | |
| Opthalidon | 1 | 2 | 7.80 | |
| Optical Frameworks | 1 | 1 | 7.79 | |
| Optimystical | 1 | 1 | 7.80 | |
| Opus | 1 | 2 | 7.83 | |
| Opus Atlantica | 1 | 9 | 7.69 | 7416 |
| Opus Dai | 1 | 1 | 7.78 | |
| Opus Dei | 1 | 1 | 7.81 | |
| Opus Draconis | 1 | 4 | 7.38 | 9534 |
| Opus Forgotten | 1 | 1 | 7.78 | |
| Opus Majestic | 2 | 3 | 7.75 | |
| Ora Nombro | 1 | 1 | 7.80 | |
| Oracle | 1 | 2 | 7.81 | |
| Oracle Of The Void | 1 | 4 | 7.93 | 2421 |
| Oracle Sun | 1 | 5 | 7.52 | 8986 |
| Oracle/Emerald | 1 | 1 | 7.77 | |
| Oracles | 1 | 2 | 7.85 | |
| Oraculum | 1 | 2 | 7.82 | |
| Orakle | 3 | 10 | 7.88 | 3225 |
| Oral Fistfuck | 1 | 2 | 7.82 | |
| Orange Goblin | 9 | 26 | 8.17 | 754 |
| Orange Hill | 1 | 1 | 7.77 | |
| Orange Outlaw | 1 | 1 | 7.78 | |
| Orange Sky | 1 | 1 | 7.79 | |
| Orange Sunshine | 1 | 1 | 7.81 | |
| Oranssi Pazuzu | 4 | 17 | 8.13 | 876 |
| Oratorio | 2 | 2 | 7.78 | |
| Oratory | 2 | 8 | 8.17 | 726 |
| Orb Of Torture | 3 | 7 | 7.91 | 2731 |
| Orbe | 1 | 1 | 7.79 | |
| Orbit Culture | 1 | 1 | 7.79 | |
| Orbitoclasto | 1 | 1 | 7.78 | |
| Orbseven | 2 | 2 | 7.77 | |
| Orca | 1 | 1 | 7.78 | |
| Orchestre De Trenos | 1 | 1 | 7.79 | |
| Orchid | 7 | 11 | 8.26 | 472 |
| Orchid's Curse | 3 | 6 | 7.51 | 9039 |
| Orchrist | 1 | 1 | 7.79 | |
| Orcivus | 2 | 3 | 7.82 | |
| Orckout | 1 | 1 | 7.80 | |
| Orcrist | 1 | 2 | 7.74 | |
| Orcultus | 1 | 1 | 7.80 | |
| Orcus Chylde | 1 | 2 | 7.77 | |
| Orcustus | 2 | 9 | 7.61 | 8360 |
| Ordained | 1 | 3 | 7.78 | |
| Ordalía | 3 | 3 | 7.70 | |
| Ordeal | 1 | 9 | 7.72 | 6881 |
| Orden Ogan | 9 | 37 | 8.44 | 171 |
| Order Of 315 | 1 | 1 | 7.77 | |
| Order Of Ennead | 2 | 9 | 7.79 | 5351 |
| Order Of Isaz | 1 | 1 | 7.80 | |
| Order Of Nine | 3 | 8 | 7.59 | 8528 |
| Order Of The Ebon Hand | 1 | 4 | 7.69 | 7429 |
| Order Of The Ebon Hand / Akrotheism | 1 | 1 | 7.79 | |
| Order Of Voices | 1 | 2 | 7.83 | |
| Order To Ruin | 2 | 3 | 7.77 | |
| Ordinance | 2 | 3 | 7.81 | 4771 |
| Ordinance (FIN) | 1 | 1 | 7.81 | |
| Ordinary Brainwash | 1 | 1 | 7.80 | |
| Ordo Draconis | 5 | 5 | 7.83 | 4399 |
| Ordo Infernus | 1 | 1 | 7.79 | |
| Ordo Inferus | 2 | 2 | 7.82 | |
| Ordo Obsidium | 1 | 3 | 7.78 | 5708 |
| Ordo Rosarius Equilibrio & Spiritual Front | 1 | 3 | 7.98 | 1855 |
| Ordo Templi Orientis / Knochenfell / Kirchenbrand | 1 | 1 | 7.77 | |
| Ordog | 4 | 7 | 7.80 | 5094 |
| Ordoxe | 2 | 3 | 7.81 | |
| Oren Ambarchi | 2 | 2 | 7.81 | |
| Orenda | 2 | 2 | 7.76 | |
| Öresund Space Collective | 5 | 8 | 7.87 | 3388 |
| Orford, Martin | 1 | 1 | 7.78 | |
| Orgaanklap | 1 | 1 | 7.79 | |
| Organ Dealer | 1 | 1 | 7.80 | |
| Organ Harvest | 1 | 1 | 7.76 | |
| Organ: | 3 | 3 | 7.81 | 4849 |
| Organic Illusion | 1 | 1 | 7.79 | |
| Organic Matter | 1 | 2 | 7.68 | |
| Orghanon | 1 | 2 | 7.80 | |
| Orghia | 1 | 1 | 7.78 | |
| Orgiastric Rebirth | 1 | 1 | 7.78 | |
| Orgone | 1 | 2 | 7.81 | |
| Orient Express | 1 | 3 | 7.77 | 5856 |
| Origami Geijutsu | 1 | 1 | 7.78 | |
| Origin | 7 | 38 | 8.33 | 331 |
| Origin Blood | 1 | 1 | 7.81 | |
| Origin of Darkness | 1 | 3 | 7.88 | 3267 |
| Origin Of Storm | 1 | 1 | 7.74 | |
| Original Sin | 1 | 1 | 7.79 | |
| Original Sinners | 1 | 1 | 7.79 | |
| Original Soundtrack | 1 | 1 | 7.80 | |
| Orion | 2 | 2 | 7.63 | |
| Orion Riders | 1 | 6 | 7.67 | 7702 |
| Ork | 1 | 1 | 7.80 | |
| Orkan | 2 | 4 | 7.79 | |
| Orkenkjott | 1 | 1 | 7.80 | |
| Orkrist | 2 | 5 | 7.79 | 5304 |
| Orkus | 2 | 3 | 7.80 | 5114 |
| Orlog | 2 | 6 | 8.08 | 1102 |
| Orna Annon | 1 | 1 | 7.81 | |
| Orne | 2 | 2 | 7.83 | |
| Ornias | 1 | 2 | 7.79 | |
| Orob | 1 | 1 | 7.81 | |
| Orobas | 1 | 1 | 7.76 | |
| Orodruin | 3 | 8 | 8.11 | 977 |
| Oroku Saki And The Foot | 1 | 1 | 7.80 | |
| Orphan Hate | 2 | 3 | 7.78 | 5722 |
| Orphan Project | 1 | 1 | 7.78 | |
| Orphanage | 3 | 8 | 7.67 | 7621 |
| Orphaned Land | 9 | 35 | 8.70 | 23 |
| Orphaned Land & Amaseffer | 1 | 1 | 7.80 | |
| Orphans Of Dusk | 1 | 1 | 7.80 | |
| Orpheo | 1 | 1 | 7.81 | |
| Orpheum | 1 | 1 | 7.80 | |
| Orpheus | 5 | 7 | 7.55 | 8829 |
| Orpheus Blade | 1 | 1 | 7.79 | |
| Orpheus Omega | 1 | 1 | 7.80 | |
| Orplid | 2 | 6 | 7.78 | 5765 |
| Orquestra Del Desierto | 1 | 1 | 7.78 | |
| Orrör | 1 | 1 | 7.78 | |
| Ortega | 4 | 9 | 8.11 | 978 |
| Orthodox | 3 | 14 | 7.89 | 3071 |
| Orthodoxy | 1 | 1 | 7.80 | |
| Orthrus | 1 | 1 | 7.80 | |
| Oruga | 2 | 3 | 7.75 | |
| Orwell | 1 | 2 | 7.82 | |
| Orymus | 1 | 1 | 7.78 | |
| Os.cu.re | 1 | 1 | 7.76 | |
| Osada Vida | 3 | 3 | 7.78 | |
| Osamenta | 1 | 1 | 7.78 | |
| Osbourne, Ozzy | 9 | 10 | 7.91 | |
| Osbourne, Ozzy, & Ayres, Chris | 1 | 1 | 7.75 | |
| Osculum Infame | 2 | 3 | 7.78 | 5691 |
| Osculum Obscenum | 1 | 1 | 7.80 | |
| Osdorp Posse | 1 | 1 | 7.82 | |
| Osh | 1 | 1 | 7.78 | |
| Oshiego | 1 | 1 | 7.80 | |
| OSI | 5 | 23 | 7.91 | 2767 |
| Osian | 1 | 1 | 7.79 | |
| Osirion | 1 | 1 | 7.79 | |
| Oskryf | 1 | 2 | 7.62 | |
| Oslo Ess | 2 | 6 | 7.85 | 3832 |
| Osmium | 1 | 1 | 7.78 | |
| Osoka | 1 | 3 | 7.69 | 7434 |
| Ossastorium | 1 | 1 | 7.79 | |
| Osseltion | 3 | 3 | 7.74 | |
| Ossicles | 1 | 1 | 7.81 | |
| Ossimoro | 1 | 1 | 7.76 | |
| Ossiyan | 1 | 1 | 7.79 | |
| Ossuaire | 1 | 1 | 7.79 | |
| Ossuary | 1 | 1 | 7.76 | |
| Ossuary Insane | 1 | 1 | 7.76 | |
| Ostara | 2 | 2 | 7.74 | |
| Ostinato | 1 | 2 | 7.84 | |
| Ostkreutz | 1 | 1 | 7.73 | |
| Ostracized | 1 | 1 | 7.79 | |
| Ostrogoth | 1 | 1 | 7.81 | |
| Ostrogoth / Killer / Doro | 1 | 1 | 7.80 | |
| Otargos | 6 | 19 | 7.78 | 5591 |
| Otep | 6 | 11 | 7.87 | 3498 |
| Otesanek | 1 | 2 | 7.87 | |
| Otherwise | 2 | 2 | 7.75 | |
| Otherworld | 1 | 1 | 7.76 | |
| Othyrworld | 1 | 1 | 7.83 | |
| Otis | 3 | 4 | 7.82 | |
| Otivm | 1 | 2 | 7.75 | |
| Otkroveniya Dozhdya | 5 | 6 | 7.66 | 7804 |
| Otr | 1 | 3 | 7.72 | 6955 |
| Otto Dix | 1 | 1 | 7.80 | |
| Otto Von Schirach | 1 | 1 | 7.82 | |
| Otyg | 3 | 4 | 7.80 | 5033 |
| Oubliette | 1 | 1 | 7.79 | |
| Ouija | 2 | 3 | 7.77 | |
| Ouijabeard | 1 | 1 | 7.78 | |
| Our Last Enemy | 1 | 2 | 7.83 | |
| Our Oceans | 1 | 1 | 7.80 | |
| Our Souls | 1 | 1 | 7.78 | |
| Our Survival Depends On Us | 2 | 2 | 7.83 | |
| Ouroboros | 1 | 3 | 7.99 | 1740 |
| Out For Blood | 1 | 1 | 7.78 | |
| Out Of Babylon | 1 | 1 | 7.79 | |
| Out Of Breath | 1 | 1 | 7.77 | |
| Out Of Decay | 1 | 1 | 7.80 | |
| Out Of Independence | 1 | 1 | 7.80 | |
| Out Of Mind | 1 | 1 | 7.77 | |
| Out Of Order | 1 | 1 | 7.81 | |
| Out Of Reach | 1 | 1 | 7.77 | |
| Out Of Season | 1 | 1 | 7.74 | |
| Out Of The Lair | 1 | 6 | 7.56 | 8746 |
| Out Of Yesteryear | 1 | 1 | 7.80 | |
| Outbreak | 1 | 2 | 7.71 | |
| Outburst | 4 | 6 | 7.93 | 2458 |
| Outcast | 4 | 13 | 7.85 | 3770 |
| Outcast / Moker | 1 | 1 | 7.75 | |
| Outcast Og Moker | 1 | 1 | 7.78 | |
| Outer Skin | 1 | 2 | 7.80 | |
| Outerburst | 1 | 1 | 7.80 | |
| Outland | 1 | 2 | 7.80 | |
| Outlaw Order | 1 | 2 | 7.69 | |
| Outlaw Renegades | 1 | 1 | 7.80 | |
| Outlawed | 2 | 3 | 7.78 | |
| Outlaws Of Ravenhurst | 1 | 1 | 7.79 | |
| Outloud | 6 | 8 | 8.22 | 569 |
| Outrage | 5 | 11 | 7.86 | 3677 |
| Outrage (deu) | 1 | 1 | 7.79 | |
| Outre | 1 | 3 | 7.98 | 1824 |
| Outre Tombe | 1 | 1 | 7.79 | |
| Outremer | 1 | 3 | 7.72 | 6968 |
| Outright Resistance | 1 | 1 | 7.76 | |
| Outshine | 1 | 1 | 7.80 | |
| Outspoken Silence | 1 | 1 | 7.70 | |
| Outtrigger | 1 | 1 | 7.80 | |
| Outworld | 1 | 8 | 8.32 | 341 |
| Ov Dust | 1 | 1 | 7.79 | |
| Ov Hell | 1 | 8 | 7.27 | 9749 |
| Ov Hollowness | 2 | 6 | 7.83 | 4271 |
| Ovenizer | 2 | 3 | 7.80 | |
| Over Dead In Over | 1 | 2 | 7.76 | |
| Over It | 1 | 2 | 7.73 | |
| Over The Coals | 1 | 1 | 7.77 | |
| Over The Edge | 2 | 4 | 7.84 | 4063 |
| Over The Edge Feat. Mickey Thomas | 1 | 1 | 7.79 | |
| Over Us Eden | 1 | 1 | 7.79 | |
| Over Your Threshold | 1 | 4 | 7.88 | 3290 |
| Overcast | 1 | 3 | 7.92 | 2608 |
| Overcharge | 1 | 2 | 7.77 | |
| Overcharger | 1 | 1 | 7.77 | |
| Overdoze | 1 | 2 | 7.67 | |
| Overdrive | 5 | 11 | 7.95 | 2180 |
| Overgarven | 2 | 6 | 7.70 | 7239 |
| Overgrown | 1 | 1 | 7.80 | |
| Overhead | 2 | 3 | 7.84 | 4150 |
| Overkill | 22 | 98 | 8.38 | 240 |
| Overland | 2 | 2 | 7.82 | |
| Overlife | 2 | 2 | 7.77 | |
| Overload | 4 | 4 | 7.80 | 5195 |
| Overloaded | 2 | 6 | 7.66 | 7846 |
| Overlord | 1 | 2 | 7.69 | |
| Overlord Perpetual | 1 | 1 | 7.79 | |
| Overlorde | 4 | 13 | 8.31 | 373 |
| Overlorde Sr | 1 | 1 | 7.79 | |
| Overlords Perpetual | 1 | 4 | 7.57 | 8698 |
| Overmars | 2 | 9 | 8.08 | 1101 |
| Overmaster | 1 | 5 | 7.81 | 4853 |
| Overock | 1 | 2 | 7.83 | |
| Overoth | 3 | 4 | 7.87 | 3428 |
| Overpower | 1 | 1 | 7.80 | |
| Overruled | 1 | 1 | 7.77 | |
| Overself | 1 | 2 | 7.74 | |
| Oversoul | 1 | 1 | 7.79 | |
| Overthrone | 2 | 6 | 7.75 | 6289 |
| Overthrow | 2 | 3 | 7.78 | 5718 |
| Overtorture | 2 | 4 | 7.94 | 2241 |
| Overtures | 4 | 8 | 7.79 | 5269 |
| Overunit Machine | 1 | 1 | 7.79 | |
| Overwind | 1 | 2 | 7.76 | |
| Ovid's Withering | 1 | 2 | 7.81 | |
| Ovnev | 1 | 1 | 7.79 | |
| Ovni | 1 | 1 | 7.80 | |
| OvO | 1 | 3 | 7.50 | 9093 |
| Ovrevolt | 1 | 1 | 7.79 | |
| Ovtrenoir | 1 | 1 | 7.80 | |
| Owen Hart | 1 | 1 | 7.79 | |
| Owingtothis | 1 | 2 | 7.72 | |
| Owl | 5 | 12 | 8.10 | 1023 |
| Oxbow | 2 | 5 | 7.96 | 2085 |
| Oxidised Razor | 2 | 2 | 7.78 | |
| Oxidised Razor/Autophagia | 1 | 2 | 7.65 | |
| Oxiplegatz | 1 | 1 | 7.80 | |
| Oxxö Xööx | 1 | 1 | 7.70 | |
| Oxygen | 1 | 1 | 7.78 | |
| Oysterband | 1 | 1 | 7.81 | |
| Oz | 3 | 10 | 8.11 | 950 |
| Ozric Tentacles | 3 | 3 | 7.70 | |
| Ozzy | 2 | 3 | 7.74 | |
| Ozzy osbourne | 17 | 45 | 7.61 | 8352 |