| Acronym | Definition |
|---|
| OMMA➣Online Media, Marketing and Advertising (magazine) |
| OMMA➣Oregon Medical Marijuana Act |
| OMMA➣Online Media and Marketing |
| OMMA➣Okanagan Mainline Municipal Association (Canada) |
| OMMA➣Ontario Ministry of Municipal Affairs (Canada) |
| OMMA➣Office of Military Manpower Administration (South Korea) |