| Abbreviation | Definition |
|---|---|
| PJ | Patrick John |
| PJ | Patrick Joseph |
| PJ | Patty Jo |
| PJ | Peck Junior |
| PJ | Pepper Junior |
| PJ | Perky Jean |
| PJ | Persephone Josephine |
| PJ | Persian John |
| PJ | Peter Jeffrey |
| PJ | Peter John |
| PJ | Peter Josef |
| PJ | Peter Junior |
| PJ | Petr Junior |
| PJ | Philip James |
| PJ | Phillip Joe |
| PJ | Pierre Jospitre |
| PJ | Pippin Joe |
| PJ | Plato, Junior |
| PJ | Playboy Junior |
| PJ | Pooh Junior |