| Abbreviation | Definition |
|---|---|
| JC | John Coffey |
| JC | John Conner |
| JC | Johnny Carson |
| JC | Johnny Cash |
| JC | Jonathan Connors |
| JC | Joshua Chasez |
| JC | Joshua Clark |
| JC | Juan Carlos |
| JC | Julia Child |
| JC | Julius Caesar |
| JCB | Joseph Cyril Bamford |
| JCC | June Carter Cash |
| JCO | Joyce Carol Oates (American author) |
| JCP | James Cash Penney |
| JCVD | Jean-Claude Van Damme |
| JCW | John Carter Wiley |
| JCZ | John C. Zimmerman |
| JD | Jack Daniels |
| JD | Jacob Dillard |
| JD | James Dean |