OISC
| Acronym | Definition |
|---|---|
| OISC | Office of the Immigration Services Commissioner (UK) |
| OISC | Oahu Invasive Species Committee (Pearl City, HI) |
| OISC | Office of the Indiana State Chemist (West Lafayette, IN) |
| OISC | One Instruction Set Computer |
| OISC | Oil Immersed Self Cooled |
| OISC | Office of Indiana State Chemist & Seed Commissioner (West Lafayette, IN) |