OMMA
| 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) |