| J | Jack 
| Others |
| J | jack(in playing cards)
| Others |
| J | Jacked
| Others |
| J | Jacklynn
| Others |
| J | Jacqueline
| Others |
| J | Jade
| Others |
| J | Jaime
| Others |
| J | Jaktplan
| Others |
| J | Jandarma
| Others |
| J | Jason
| Others |
| J | Java
| Others |
| J | Jay
| Others |
| J | Jeff
| Others |
| J | Jeffrey
| Others |
| J | Jellybeans
| Others |
| J | Jennifer
| Others |
| J | Jensen
| Others |
| J | Jerome
| Others |
| J | Jerry
| Others |
| J | Jersey
| Others |
| J | Jesmion
| Others |
| J | Jessica
| Others |
| J | Jewish
| Others |
| J | Jigger
| Others |
| J | Jigsaw
| Others |
| J | Jim
| Others |
| J | Jitter
| Others |
| J | Joan
| Others |
| J | Joann
| Others |
| J | Joey
| Others |
| J | Johanna
| Others |
| J | John
| Others |
| J | Johnson
| Others |
| J | Join
| Others |
| J | Joining
| Others |
| J | Joint
| Others |
| J | Joke
| Others |
| J | Joker
| Others |
| J | Jon
| Others |
| J | Joseph
| Others |
| J | Josephdoes
| Others |
| J | Joule
| Others |
| J | Joule (SI Unit)
| Others |
| J | Joules
| Others |
| J | Journal
| Others |
| J | Journals
| Others |
| J | Joy
| Others |
| J | Joyful
| Others |
| J | Judge
| Others |
| J | Judge, justice
| Others |
| J | Judgement
| Others |
| J | Judging
| Others |
| J | Judicatory
| Others |
| J | Jules
| Others |
| J | Julianne
| Others |
| J | Jungle
| Others |
| J | Juniper
| Others |
| J | Junk
| Others |
| J | Junkyard
| Others |
| J | Juno
| Others |
| J | Just
| Others |
| J | Justice
| Others |
| J | Justifiably
| Others |
| J | Juvenile
| Others |
| J | The Jth
| Others |
| J | Torsional Constant for a structural Section
| Others |
| J# | J-sharp
| Others |
| J# | J-sharp programming language
| Others |
| J# | Judd Number
| Others |