| Acronym | Definition |
|---|
| OMNI➣Omnidirectional |
| OMNI➣Organising Medical Networked Information |
| OMNI➣Opportunities for Micronutrient Interventions Project |
| OMNI➣Operating Missions as a Node on the Internet (NASA networking project) |
| OMNI➣Oppose Militancy & Neutralize Invasion (Gundam Seed anime) |
| OMNI➣Open Minds, New Ideas (Poland Spring, ME summer camp) |
| OMNI➣Output Matching Network Impedance |
| OMNI➣Operation and Maintenance of Navigation Installations |
| OMNI➣Overseas Moving Network Institute |