RMI
- .rmi
- Federico Fellini International Airport
- Java remote method invocation
- RM1 (disambiguation)
- RMI Corporation
- RMI Expeditions
- RMI Titanium Company
- Radio Massacre International
- Radio magnetic indicator
- Railcar Management LLC
- Ramapough Mountain Indians
- Rank mobility index
- Reaction Motors Inc.
- Remote Medical International
- Repetitive motion injury
- Republic of the Marshall Islands
- Revenu minimum d'insertion
- Richtmyer–Meshkov instability
- Risk of malignancy index
- Rocky Mount Instruments
- Rocky Mountain Institute
- Royal Manchester Institution
- Royal Meteorological Institute
- WRMI