| J/g | Joules Per Gram 
| Others |
| JG | Jack Gamble
| Others |
| JG | Jack Gutschneider
| Others |
| JG | Jagged Grin
| Others |
| JG | James Guill
| Others |
| JG | Jammy Goodness
| Others |
| JG | Jash Graphic
| Others |
| JG | Jason Greene
| Others |
| JG | Jay Gatsby
| Others |
| JG | Jay Gordon
| Others |
| JG | Jazz Grooves
| Others |
| JG | Jeff Gordon
| Others |
| JG | Jeffery Guan
| Others |
| JG | Jeffy Gordon
| Others |
| JG | Jennifer Garner
| Others |
| JG | Jennifer George
| Others |
| JG | Jesus Geek
| Others |
| JG | Jesus Generation
| Others |
| JG | Joan George
| Others |
| JG | Joan Grace
| Others |
| JG | Job Getter
| Others |
| JG | Jock Geordie
| Others |
| JG | Joe Gibbs
| Others |
| JG | John Gewinner
| Others |
| JG | John Glenn
| Others |
| JG | John Golden
| Others |
| JG | John Goodman
| Others |
| JG | John Graham
| Others |
| JG | Joint Goal
| Others |
| JG | Jolly Good
| Others |
| JG | Jon Gunderson
| Others |
| JG | Jose Garces
| Others |
| JG | Josef Gottlieb
| Others |
| JG | Joseph Gabriel
| Others |
| JG | Jounior Grade
| Others |
| JG | Journal Geology
| Others |
| JG | Journal Grab
| Others |
| JG | Jua Gen
| Others |
| JG | Juicy Gizmos
| Others |
| JG | Julian Gregory
| Others |
| JG | Julie Golob
| Others |
| JG | Julio Giulietti
| Others |
| JG | Jump If Greater
| Others |
| JG | June Gloom
| Others |
| JG | Junge Gemeinde
| Others |
| JG | Junior Ginger
| Others |
| JG | Junior Grade
| Others |
| JG | Just A God
| Others |
| JG | Just Garbage
| Others |
| JG | Just Get
| Others |
| JG | Just Gold
| Others |
| JG | Just Great
| Others |
| JG | Justified Gaming
| Others |
| JG | Lieutenant, Junior Grade ( U S Navy)
| Others |
| Jg. | Jahrgang
| Others |