OMMI
| Acronym | Definition |
|---|---|
| OMMI | Ontario Municipal Management Institute (Canada) |
| OMMI | Oblate Missionaries of Mary Immaculate (Manville, RI) |
| OMMI | Office of Microelectronics, Medical Equipment, and Instrumentation (US DOC) |
| OMMI | Oblates Missionnaires de Marie Immaculée (Oblate Missionaries of Marry Immaculate) |