| Acronym | Definition |
|---|
| OMJ | Oh My Jashin |
| OMJ | One Man's Junk (website) |
| OMJ | OnlyMarketingJobs (website; UK) |
| OMJ | Oh My Jonas (Jonas Brothers band fansite) |
| OMJ | Open Museum Journal (Australia) |
| OMJ | Ohio Means Jobs (labor exchange) |
| OMJ | Oh My Jesus |
| OMJ | Osler Medical Journal |
| OMJ | Oh My Josh |
| OMJ | Oh My Jacob (Twilight Fan Site) |
| OMJ | Old Man Jenkins (Spongebob Squarepants cartoon character) |
| OMJ | O Major Reformado |
| OMJ | Old Man Johnson (band) |
| OMJ | Orthomode Junction |
| OMJ | Oh My Joss (Joss Whedon, Buffy and Angel's Creator) |
| OMJ | Oh My Jasper (from the book Twilight by Stephenie Meyer) |
| OMJ | Oh Michael Jackson |
| OMJ | Oh My Jedward |
| OMJ | Oman Medical Journal |
| OMJ | Oh My Jelly |
| OMJ | Oh My Job (career website; Philippines) |
| OMJ | Oh My Juice |
| OMJ | Orissa Medical Journal (India) |
| OMJ | Oh My Jeepers |