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| J.C. Cinel | The Light of a New Sun | Rock |
| J.C. Cinel | Where the River Ends | Rock |
| J27 | Generazione Mutante | Hard Rock |
| Jacinto Canek | Jacinto Canek | Crossover |
| Jack Foster III | Evolution of Jazzraptor | Prog |
| Jack Foster III | Raptorgnosis | Prog |
| Jack Foster III | Tame Until Hungry | Prog |
| Jack Foster III | Jazzraptor's Secret | Prog |
| Jack Or Jive | Absurdity | Electronic |
| Jack Or Jive | Kakugo | Electronic |
| Jackal | Black Inside | Heavy Metal |
| Jacula | Pre Viam | Dark Prog |
| Jadis | Fanatic | Prog |
| Jadis | Photoplay | Prog |
| Jaén Kief | Las Hadas no Vuelan Más | Prog |
| Jail Underdog | Electric Countryside | Garage |
| Jam Pain Society | Black Light Messiah | Crossover |
| Janara, La | La Janara | Dark Rock |
| Janara, La | Tenebra | Dark Rock |
| Jane | Shine On | Hard Rock |
| Jansson Benny | Save the World | Virtuoso |
| Janua Coeli | X Uno Come Me | Rock Christ. |
| Janua Coeli | Dio Scende Nella Miseria | Rock Christ. |
| Janua Coeli | Stupisco | Rock Christ. |
| Jasmeno | Elixir | Electronic |
| Jaugernaut | Contra-Mantra | Prog |
| Jelly Jam | 2 | Hard Rock |
| Jenny's Joke | Jenny's Joke | Indie Rock |
| Jerusalem | Jerusalem | Hard Rock |
| Jethro Tull | Heavy Horses | Folk Rock |
| Jethro Tull | Living With the Past | Prog |
| Jethro Tull | Christmas Album | Folk Rock |
| Jethro Tull | Nothing is Easy | Prog |
| Jetlag | Delusione Ottica | Prog |
| Jevtovic Dusan | Am I Walking Wrong | Jazz Rock |
| Jevtovic Dusan | No Answer | Jazz Rock |
| Jevtovic Dusan | Live at Home | Jazz Rock |
| Jevtovic Dusan | If You See Me | Jazz Rock |
| Jevtovic Hadzimanov | Dusan Jevtovic Vasil Hadzimanov | Jazz |
| Jezebel | Forbidden Fruit | Gothic |
| Jil Is Lucky | The Wanderer | Rock |
| Jimi Barbiani Band | Back to the Tracks | Heavy Blues |
| Jimi Barbiani Band | Blue Slide | Rock Blues |
| Jing Chi | Live | Fusion |
| Jing Chi | 3D | Fusion |
| Jinmo | Neo Tokio | Avant Garde |
| Jodi Essex | Fearless | Hard Rock |
| John Galt | Served Hot | Hard Rock |
| John-Krol Louisa | Ariel | Folk |
| John-Krol Louisa | Alabaster | Folk |
| John-Krol Louisa | Djinn | Folk |
| John Lees' BJH | North | Rock |
| Johnny Burning | Get Up, Get Lose, Get Off! | Sleaze |
| Johnny Gray | We Give You the Grace to Show on Your Face | Rock |
| Johnny Hollow | Dirty Hands | Gothic |
| Johnson Rob | Rob Johnson / Peripheral / Guitarchitecture | Virtuoso |
| Jolly | The Audio Guide to Happiness | Prog Metal |
| Jolly Power | Like an Empty Bottle... Again | Hard Rock |
| Jon Anderson and The Band Geeks | True | Prog |
| Jones Bones, the | Stones of Revolution | Rock Blues |
| Jonny A. | Sometime Tuesday Morning | Rock Blues |
| Jordsjo | Pastoralia | Prog |
| Jordsjo | Salighet | Prog |
| Jorn | Worlchanger | Heavy Metal |
| Jorn | Unlocking the Past + The Gathering | Hard Rock |
| Jorn | Live in America | Hard Rock |
| Jorn | Live in America (dvd) | Hard Rock |
| Jorn | Bring Heavy Rock To The World | Heavy Rock |
| Journey | Red 13 | AOR |
| Journey | Generations | AOR |
| Judas Priest | Angel of Retribution | Heavy Metal |
| Juglans Regia | Controluce | Prog Metal |
| Juglans Regia | Visioni Parallele | Prog |
| Jukka Tolonen Band | JTB | Fusion |
| Julian Angel's Beautiful Beast | Kick Down the Barricades | Hard Rock |
| Jump | ...and All the King's Men | Prog |
| Jupiter Society | First Contact - Last Warning | Prog Metal |
| Jupiter Society | Terraform | Prog Metal |
| Jupiter Society | From Endangered to Extinct | Prog Metal |
| Jus Primae Noctis | Istinto |