| Howie Made Me Do It | Album | 2003 | Compilation |
| I C U (Doin’ It) | Single | 2003 | — |
| I Care 4 U & Don't Worry | Single | 2003 | — |
| I've Never Seen... | Single | 2003 | — |
| Il secondo secondo me | Single | 2003 | — |
| Ill Na Na II: The Fever | Album | 2003 | — |
| Indian Flute | Single | 2003 | — |
| Inkarneret | Album | 2003 | — |
| Insomnia | Album | 2003 | Mixtape/Street |
| Insomniac Olympics | Single | 2003 | — |
| Into You | Single | 2003 | — |
| Io no | Single | 2003 | — |
| It Takes More (DJ Zinc remix) / Makossa | Single | 2003 | — |
| Killa Killa | Single | 2003 | — |
| Language Is Fatal | Album | 2003 | Mixtape/Street |
| Let's Get Ill (Hell remix) | Single | 2003 | Remix |
| Let’s Get Ill | Single | 2003 | — |
| Light Your Ass on Fire | Single | 2003 | — |
| Limelighters | Single | 2003 | — |
| Limited Edition Mixtape | Album | 2003 | Mixtape/Street |
| Live at the Paradiso | Album | 2003 | Live |
| Live From Compton | Album | 2003 | Mixtape/Street |
| Live in Gifhorn (Osterspecial) | Album | 2003 | Live |
| Locked Up | Single | 2003 | — |
| Loose Ends | Album | 2003 | Compilation |
| Love @ 1st Sight | Single | 2003 | — |
| Made You Look (remix) | Single | 2003 | — |
| March of Death | Single | 2003 | — |
| May I | Single | 2003 | — |
| Meet Jon Doe | Album | 2003 | Compilation |
| Meth & Red in da House | Album | 2003 | Compilation |
| Miehen maailma | Album | 2003 | — |
| Miss You (Remix) | Single | 2003 | Remix |
| Mix Tape, Vol.2 (The Dead Street Scrolls) | Album | 2003 | Mixtape/Street |
| Mixtape, Volume I: NC State of Mind | Album | 2003 | Compilation, Mixtape/Street |
| Money Folder / America’s Most Blunted | Single | 2003 | — |
| Money in the Bank | Album | 2003 | DJ-mix, Mixtape/Street |
| Mood Music: The Worst of Joe Budden | Album | 2003 | Mixtape/Street |
| My Demo | Album | 2003 | Compilation |
| My Name Is Nobody | Album | 2003 | — |
| Naughty Girl | Single | 2003 | — |
| New South: The Album B4 the Album | Album | 2003 | Mixtape/Street |
| Nice Girl, Wrong Place / Rite Where U Stand | EP | 2003 | — |
| Noble Art | Single | 2003 | — |
| On The Run | Album | 2003 | Mixtape/Street |
| Orgi Pörnchen 2: Der Soundtrack | Album | 2003 | Compilation |
| Outcesticide 6: A Mess of Blues | Album | 2003 | Compilation |
| Parental Advisory Xplicit Content | Album | 2003 | Compilation |
| Party Over Here | Single | 2003 | — |
| Party to Damascus | Single | 2003 | — |
| Pay Jay | Album | 2003 | — |
| Play No Games | Single | 2003 | — |
| Power Assault Live!... In the Belly of the BEAST | Album | 2003 | — |
| Pussy | Single | 2003 | — |
| Quality Streetz Hors-Série | Album | 2003 | Compilation |
| Quannum Mix CD, Volume 1: DJ D-Sharp's June Bug Session | Album | 2003 | Remix |
| Quannum: Live on British Radio | Album | 2003 | Live |
| Rare Shit, Collabos, and Freestyles | Album | 2003 | Compilation |
| Remixes EP | EP | 2003 | — |
| Rookie of the Year | Album | 2003 | Mixtape/Street |
| Ruff Draft | EP | 2003 | — |
| Run Away Slave Mixtape | Album | 2003 | Compilation |
| Scion CD Sampler 7 | Album | 2003 | Compilation |
| Seven's Travels Vinyl Bonus Tracks | EP | 2003 | — |
| Shaolin’s Finest | Album | 2003 | Compilation, DJ-mix |
| Show Me Your Soul | Single | 2003 | Soundtrack |
| Sleepyheads: Unreleased and Hard to Find | Album | 2003 | Compilation |
| Slim’s Return | EP | 2003 | — |
| So Gone | Single | 2003 | — |
| So Gone (remix) | Single | 2003 | Remix |
| Soundtrack Raw N Uncut Volume 1 | Album | 2003 | Soundtrack |
| Speakerboxxx / The Love Below - Album Sampler | Album | 2003 | — |
| Split Personality (album sampler) | EP | 2003 | — |
| Sports Center, Vol. 1 | Album | 2003 | Mixtape/Street |
| SQ5 | Album | 2003 | Mixtape/Street |
| SQ6 | Album | 2003 | Mixtape/Street |
| Stand Up | Single | 2003 | — |
| Summertime | Single | 2003 | Soundtrack |
| Så Ka I Lære Det | Single | 2003 | — |
| Tajna Crne Kutije | Album | 2003 | Compilation |
| Take You Home (Just Blaze remix) | Single | 2003 | Remix |
| Task Force presents... DJ Louis Slipperz £10 Bag, Volume II | Album | 2003 | Compilation |
| The Alchemist Presents: Heavy Surveillance | Album | 2003 | Mixtape/Street |
| The Bar Is Open | Album | 2003 | Compilation, DJ-mix, Mixtape/Street |
| The Best of Mobb Deep & Littles: The Chapter of Life, Death and Money | Album | 2003 | Compilation |
| The Brainstream EP | EP | 2003 | — |
| The Classic Fantasy | Album | 2003 | — |
| The Cutting Room Floor: 1st Infantry Mixtape | Album | 2003 | Mixtape/Street |
| The Day Hell Broke Loose 2 AKA Major Without A Major Deal | Album | 2003 | — |
| The Future | EP | 2003 | Mixtape/Street |
| The Get Out Volume 1 | Album | 2003 | — |
| The Ghetto Pop Mix | Album | 2003 | Compilation |
| The Ghost Rider, Volume 2 | Album | 2003 | Compilation |
| The Growth From Within | Album | 2003 | Mixtape/Street |
| The Hustler | Single | 2003 | — |
| The Kristyle | Album | 2003 | — |
| The Lost Masters | Album | 2003 | — |
| The Lost Tapes | Album | 2003 | — |
| The Manifesto | Album | 2003 | Compilation |
| The New Breed | Album | 2003 | Compilation |