| Abbreviation | Definition |
|---|---|
| JQ | John Qwelane |
| JQ | Jonny Quest |
| JQA | John Quincy Adams |
| JR | Jack Ruby |
| JR | James Robertson |
| JR | James Russell |
| JR | Jane Russel |
| JR | Jesse Ruggiero |
| JR | Jessica Rabbit |
| JR | Jim Riddle |
| JR | Joey Ramone |
| JR | John Renfro |
| JR | John Roberts |
| JR | John Ross |
| JR | Johnny Ray |
| JR | Johnny Rice (surfboard products) |
| JR | Johnny Rotten |
| JR | Judy Richards |
| JRD | John Rhys Davis |
| JRF | Jerome R. Fraser |