| J.League Tactics Manager - Realtime Soccer Simulation | JP | 2003-02 |
Sammy Studios | Commercial |
| James Cameron's Dark Angel | EU | 2003-02 |
Sierra Entertainment | Commercial |
| Jissen Pachi-Slot Hisshouhou! Salaryman Kintarou | JP | 2003-03 |
Sammy | Commercial |
| Jurassic Park - Operation Genesis | AU | 2003-03 |
Konami | Commercial |
| Jurassic Park - Operation Genesis | EU | 2003-03 |
Konami | Commercial |
| Jurassic Park - Operation Genesis | US | 2003-03 |
Konami | Commercial |
| Jampack - Summer 2003 | US | 2003-04 |
Sony Computer Entertainment America | Commercial |
| J.League Pro Soccer Club o Tsukurou! 3 | JP | 2003-06 |
Sega | Commercial |
| Jissen Pachi-Slot Hisshouhou! Savanna Park | JP | 2003-06 |
Sammy Studios | Commercial |
| Jissen Pachi-Slot Hisshouhou! Savanna Park DX | JP | 2003-06 |
Sammy Studios | Commercial |
| Jikkyou Powerful Pro Yakyuu 10 | JP | 2003-07 |
Konami | Commercial |
| Jikkyou Powerful Pro Yakyuu 10 | JP | 2003-07 |
Konami | Demo |
| Jikkyou Powerful Pro Yakyuu 10 - Chou Ketteiban - 2003 Memorial | JP | 2003-07 |
Konami | Commercial |
| Juunikoku-ki - Guren no Shirube Koujin no Michi | JP | 2003-08 |
Konami | Commercial |
| Jak II | US | 2003-10 |
Sony | Commercial |
| Jak II | US | 2003-10 |
Sony Computer Entertainment | Add-on |
| Jak II | US | 2003-10 |
Sony Computer Entertainment | Demo |
| Jak II - Jak x Daxter 2 | JP | 2003-10 |
Sony Computer Entertainment | Demo |
| Jak II - Renegade | AU | 2003-10 |
Sony | Commercial |
| Jak II - Renegade | EU | 2003-10 |
Sony | Commercial |
| Jak II - Renegade | EU | 2003-10 |
Sony Computer Entertainment | Demo |
| Jampack - Winter 2003 | US | 2003-10 |
Sony Computer Entertainment | Commercial |
| Jeopardy! | US | 2003-10 |
Atari | Commercial |
| Jissen Pachi-Slot Hisshouhou! King Camel | JP | 2003-10 |
Sammy | Commercial |
| Judge Dredd - Dredd vs. Death | DE | 2003-10 |
Sierra Entertainment | Commercial |
| Judge Dredd - Dredd vs. Death | EU | 2003-10 |
Sierra Entertainment | Commercial |
| Junior Sports Basketball | EU | 2003-10 |
Atari | Commercial |
| Jacked | AU | 2003-11 |
D3 Publisher | Commercial |
| Jacked | EU | 2003-11 |
D3 Publisher | Commercial |
| Jim Henson's Muppets Party Cruise | US | 2003-11 |
TDK Mediactive | Commercial |
| J.League Winning Eleven Tactics | JP | 2003-12 |
Konami | Commercial |
| Jissen Pachi-Slot Hisshouhou! Sammy's Collection 2 | JP | 2003-12 |
Sammy Studios | Commercial |
| Jissen Pachi-Slot Hisshouhou! Sammy's Collection 2 DX | JP | 2003-12 |
Sammy Studios | Commercial |
| Junk TV | UK | 2003-12 |
Datel | Unlicensed |