OAJ
| Acronym | Definition |
|---|---|
| OAJ | Open Access Journals (online publications) |
| OAJ | Jacksonville, NC, USA (Airport Code) |
| OAJ | Open Agility Jumper (dog training) |
| OAJ | Ohio Association for Justice (formerly Ohio Academy of Trial Lawyers) |
| OAJ | Olympians Association of Japan (Tokyo, Japan) |
| OAJ | Opetusalan Ammattij |