| 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) |