| Acronym | Definition |
|---|
| IMSF | International Marine Simulator Forum (maritime education and research forum) |
| IMSF | International Maritime Statistics Forum (various locations) |
| IMSF | International Mass Spectrometry Foundation (Apeldoorn, Netherlands) |
| IMSF | IS-41 Message Security Forum |
| IMSF | Institute of Marine Sciences and Fisheries (University of Chittagong; Bangladesh) |
| IMSF | Israeli Mediterranean Spotted Fever |
| IMSF | Intersystem Messaging Security Forum |
| IMSF | IGNOU (Indira Gandhi National Open University) MCA (Master of Computer Applications) Students' Forum (online student resources) |