| “Uh Uh,,,,,,” / baby be mine | Single | February 5, 2003 | — |
| Lazyfatboy 4 Life | Album | February 2, 2003 | — |
| MTV ao vivo: Gabriel o Pensador | Album | February 2003 | Compilation, Live |
| Selling Live Water | Album | January 13, 2003 | — |
| ’03 Bonnie & Clyde | Single | January 13, 2003 | — |
| California Soul | Album | January 1, 2003 | — |
| Deliverance | Album | January 1, 2003 | — |
| Mansbestfriend, Part 2: "No Thanks" | Album | January 1, 2003 | — |
| Music for Earthworms (The Instrumentals) | Album | January 1, 2003 | Remix, Mixtape/Street |
| Hey Ma | Single | January 2003 | — |
| Promo Only Canada: Mainstream Radio, February 2003 | Album | January 2003 | Compilation |
| 2003-08-01: Richfield, MN, USA | Album | 2003 | Live |
| 4 Pete Sake: The Pete Rock Years Remixes, Volume 1 | Album | 2003 | Compilation, Remix |
| A New Groove: A New Jean | Single | 2003 | — |
| A Taste of Tical 0 (The Prequel) Mixed by J-Love | Album | 2003 | Compilation |
| A Walk in the Woods | EP | 2003 | — |
| A.K.A. J. Yancey | Album | 2003 | Compilation |
| Acid Rain | Album | 2003 | Compilation |
| Act a Fool | Single | 2003 | — |
| Also Was !?! / Who Want It? | EP | 2003 | — |
| Back in the Mud | Single | 2003 | — |
| Back to the Beat | Album | 2003 | DJ-mix |
| Balls and My Word (Screwed and Chopped) | Album | 2003 | Remix |
| Bazooka 2th (G-Man version) | Album | 2003 | DJ-mix |
| Beautiful | Single | 2003 | — |
| Beef / Monster Music (G.H.E.T.T.O.) | Single | 2003 | — |
| Behind Da Bars | Album | 2003 | Compilation |
| Belly Dancer / Sick! | Single | 2003 | — |
| Best of Canibus | Album | 2003 | — |
| Black Out | Single | 2003 | — |
| Breaking the Habit | Single | 2003 | — |
| Can't Let You Go (remix) | Single | 2003 | Remix |
| Chinese Box Set | Album | 2003 | Compilation |
| Close Edge | Single | 2003 | — |
| Collabos and Bullets | Album | 2003 | Compilation |
| Come Over | Single | 2003 | — |
| Cop That Shit | Single | 2003 | — |
| D.I.G.I.T.A.L. | Album | 2003 | Compilation |
| Damn | Single | 2003 | — |
| Dance With Us (Theme from ''The Wild Thornberrys Movie'') | Single | 2003 | Soundtrack |
| Dangerous Language / Whirlwind 2 | Single | 2003 | — |
| Deliverance | Single | 2003 | — |
| Die gute Laune Hölle (Live Mitschnitt) | Album | 2003 | Live |
| Diminishing Returns | Album | 2003 | Live, DJ-mix |
| Dirty Magazine | Album | 2003 | Compilation |
| Dirty South Classics | Album | 2003 | Compilation |
| DJ Lt. Dan Presents the Illest of M.O.P. | Album | 2003 | Compilation |
| Don't Know What To Tell Ya / Got To Give It Up (Remix) | Single | 2003 | — |
| Dr Dre & Friends | Album | 2003 | Compilation |
| Dr. Dre Presents: Early Years of the West Side | Album | 2003 | Compilation |
| Dälek vs Velma | Single | 2003 | — |
| E&A Road Mix | Album | 2003 | Mixtape/Street |
| Earth, Wind & Fire | Album | 2003 | Compilation |
| Empty Barrell | Single | 2003 | — |
| Feel Good / The Essence | Single | 2003 | — |
| Fighting Temptation / Summertime | Single | 2003 | Soundtrack |
| Fish Outta Water: The Remixes | Album | 2003 | Remix |
| Full Clip Remix / Work Remix | Single | 2003 | Remix |
| Galang | Single | 2003 | — |
| Get It Off | Single | 2003 | — |
| Get Low | Single | 2003 | — |
| Ghetto Square Dance - DJ Tomekk Remix | Single | 2003 | — |
| Golden Age / African Style | EP | 2003 | — |
| Greenhouse / Movin’ | Single | 2003 | — |
| G‐Unit Radio: Smokin’ Day 2 | Album | 2003 | DJ-mix, Mixtape/Street |
| Hamburgs Finest Exclusive Mixtape Vol. 1 | Album | 2003 | Mixtape/Street |
| Hello Nasty: Instrumentals | Album | 2003 | — |
| Hey Mama (Remix) | Single | 2003 | — |
| HH History | Album | 2003 | Interview |
| Hidden Darts Part II | Album | 2003 | Mixtape/Street |
| Hiphop.de Exclusive | Single | 2003 | — |
| Hits & Unreleased, Volume 1 | Album | 2003 | Compilation |
| Hits and Unreleased Vol. 1 | Album | 2003 | Compilation |
| Holidae In | Single | 2003 | — |
| Hot Damn | Single | 2003 | — |
| 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 | — |
| 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 | — |
| 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 | — |
| Love @ 1st Sight | Single | 2003 | — |
| Made You Look (remix) | Single | 2003 | — |
| March of Death | Single | 2003 | — |
| May I | Single | 2003 | — |