| Acronym | Definition |
|---|
| OMSI➣Oregon Museum of Science and Industry |
| OMSI➣Open Mobile Service Interface |
| OMSI➣Operation and Maintenance Support Information |
| OMSI➣Office of Monitoring and School Improvement |
| OMSI➣Open, Modular, Scalable, Integrated |
| OMSI➣Oregon Materials Science Institute (est. 1985) |
| OMSI➣Optimum Mortgage Services Inc. (Eagen, MN) |