| Rank | Abbreviation | Meaning |
|---|
| ***** | OMIS | Operations and Maintenance Information System
| |
| **** | OMIS | Office Management Information System
| |
| **** | OMIS | Order Management Information System
| |
| **** | OMIS | Operations and Maintenance Instruction
| |
| **** | OMIS | Optical Microscope Inspection System
| |
| **** | OMIS | outer medullary inner stripe
| |
| **** | OMIS | Operational Management Information System
| |
| **** | OMIS | Obsolescence Management Information System
| |
| **** | OMIS | Operational Medical Information System
| |
| *** | OMIS | Oil Market Information System
| |
| *** | OMIS | Oil Movement Information System
| |
| *** | OMIS | Operations Management Information System
| |
| ** | OMIS | Online Monitoring Interface Specification
| |
| ** | OMIS | Online Management Information System
| |
| ** | OMIS | Other Minority Institutions
| |
| ** | OMIS | Overseas Market Intelligence Service
| |
| ** | OMIS | Operational Multichannel Imager Suite
| |
| ** | OMIS | Online Market Introduction Service
| |
| * | OMIS | Overseas Market Introductory Service
| |
| * | OMIS | Operational Multispectral Imager Suite
| |
| * | OMIS | Oceanographic Management Information System
| |
| * | OMIS | Organizational Memory Information Systems
| |
| * | OMIS | Ordinance Management Inventory System
| |
| * | OMIS | Orbiter MidBody Inspection System
| |
| * | OMIS | Oliver Mayer Internet Solutions
| |