J
- JAM Project – Super Robot Wars series
- Jeroen Kimmel / RED (The JudgeS) – Alien Syndrome, Traz, Frightmare, Playboy, The Big Deal
- Lee Jackson – Rise of the Triad, Duke Nukem 3D
- Richard Jacques – Sonic R, Metropolis Street Racer, Headhunter, DarXide (with Adam Salkeld), Sonic Chronicles: The Dark Brotherhood
- Bobby James – "Big Finish Games"
- Richard Joseph – Sensible Software, Bitmap Brothers, many others from 1986 to the present day.
- Jph Wacheski
- Junko Tamiya – Bionic Commando (NES), Darkwing Duck, Gun.Smoke, Little Nemo: The Dream Master, Street Fighter 2010: The Final Fight, Strider (arcade game), Sweet Home (video game)
Read more about this topic: List Of Video Game Musicians