| Abbreviation | Definition |
|---|---|
| JT | John Terry |
| JT | John Thomas |
| JT | John Troy |
| JT | Jonathan Trent |
| JT | Jordan Taylor |
| JT | Joseph Thomas |
| JT | Joshua Thomas |
| JT | Junior Tamakwan |
| JTA | Jace The Ace |
| JTHM | Johnny The Homicidal Maniac |
| JTK | James T. Kirk |
| JTR | Jack The Ripper |
| JTR | John The Reverend |
| JV | James Verner |
| JV | John Vincent (John Vincent Martin Boyle) |
| JV | Julie Victoria |
| JVZ | Jimmy Van Zant |
| JW | Jacob William |
| JW | James Walter |
| JW | James William |