- 3 Jaypeezy
- 12 Jazz Burgess
- 4 Jazzyb
- 7 JbP
- 7 Jean-Paul LeBreton
- 3 JED,I
- 10 Jefe
- 2 Jeff
- 4 Jeff "DarkAngel" Amaro
- 6 Jeff "Flunders" Smyth
- 6 Jeff "Mantis" Standridge
- 6 Jeff "Monger" Randall
- 2 Jeff "MuchFun" Whittaker
- 4 Jeff "Sykes" Budge
- 4 Jeff 'Lehm' Adams
- 22 Jeff 'Nightshift' Buhler
- 3 Jeff Amaro (DarkAngel)
- 150 Jeff Martin
- 6 Jeff Smith
- 2 Jeff Wilson
- 3 Jeff {Death4u2} Greer
- 12 Jeffrey
- 2 Jeffrey "Capp" Miner
- 2 JeffWilson
- 2 Jeff{Deat4u2}Greer
- 8 Jeff{Death4u2}Greer
- 3 Jekko
- 16 Jeklo_90.1
- 2 Jen Tonon
- 9 Jennifer Diane Reitz
- 2 Jennifer Diane Reitz lupa@otakuworld
- 2 Jennifer Diane Reitz ''
- 3 JenoLT
- 2 Jens van Dijk // [-=EG=-]IceWind
- 2 Jensen "Tyfius" Somers
- 4 Jeremiah 'Byte' Fulbright
- 2 Jeremy "Black_Plague" McEntee
- 16 Jeremy "Faceless" Graves
- 7 Jeremy "Lord Riff Raff" Read
- 5 Jeremy War
- 2 Jeremy War / Cedric Fiorentino
- 2 Jeremy War/Cliff Bleszinski
- 2 Jeremy Wood
- 26 Jeremy'SureShot'Whiting
- 2 Jerid ]Valkyrie[ Cossette
- 17 Jerome Bos
- 5 Jerry "{LoD}" Welch
- 2 Jesco "X-Terror-81" Topp
- 2 Jesse (SuperAlgae) Banet
- 2 Jesse Banet
- 2 Jesse The Body
- 3 Jesus "N3odoc" Diaz
- 2 Jesús "N3oDoc" Díaz, minor bugfixnoeff.ketsuzoku
- 8 Jesús 'N3oDoc' Díaz
- 3 Jetlagg
- 4 JEZZ (of ChaoticDreams)
- 2 JEZZ from (Chaotic Dreams)
- 4 JFF