| Acronym | Definition |
|---|
| IOSC➣IUSS (Integrated Undersea Surveillance System) Operations Support Center |
| IOSC➣International Oil Spill Conference |
| IOSC➣Installation On-Scene Coordinator |
| IOSC➣International Open Solutions Centre (London, UK) |
| IOSC➣Immigration Outreach Service Center |
| IOSC➣International Operators Support Conference |
| IOSC➣Item of Service Code (various companies) |