| Abbreviation | Definition |
|---|---|
| IMF | Interplanetary Magnetic Field |
| IMF | Inventory Master File |
| IMIC | Integrated Management Information Computer |
| IML | Inside Mold Line |
| IML | International Microgravity Laboratory |
| IMP | Initial Memory Protection |
| IMP | Interplanetary Monitoring Platform |
| IMPD | IMPeDance |
| IMPL | IMPLement |
| IMPLS | IMPuLSe |
| IMS | Information Management System |
| IMS | Institutional Management Support |
| IMS | Inventory Management System |
| IMSL | InterMediate SeaL |
| IMU | Inertial Measurement Unit |
| IMV | Inter-Module Ventilation |
| IN | INch |
| IN | Information Systems Directorate |
| IN | Inlet |
| INBD | INBoarD |